TY 2013 Form 990

- TIN:

Form990

Department of the Treasury
Internal Revenue Service

Return of Organization Exempt From Income Tax

Under section 501(c), 527, or 4947(a)(1) of the Internal Revenue Code (except private foundations)

Do not enter Social Security numbers on this form as it may be made public. By law, the IRS

generally cannot redact the information on the form.

Information about Form 990 and its instructions is at www.IRS.gov/form990.

OMB No. 1545-0047

2013

Open to Public Inspection

A For the 2013 calendar year, or tax year beginning 04-01-2013 , 2013, and ending 03-31-2014

BCheck if applicable: Address change Name change Initial return Terminated Amended return Application pending

CName of organization
ASPEN CENTER FOR PHYSICS

Doing Business As

Number and street (or P.O. box if mail is not delivered to street address)
700 WEST GILLESPIE STREET

Room/suite

City or town, state or province, country, and ZIP or foreign postal code
ASPEN, CO81611

D Employer identification number

84-6059504

E Telephone number

G Gross receipts $ 3,598,555

F Name and address of principal officer:
JANE KELLY
700 WEST GILLESPIE STREET
ASPEN,CO81611

Tax-exempt status: 501(c)(3) 501(c) ( ) LeftBullet

(insert no.) 4947(a)(1) or 527

Website:

WWW.ASPENPHYS.ORG

H(a)

Is this a group return for
subordinates? Yes No

H(b)

Are all subordinates
included?

Yes No

If "No," attach a list. (see instructions)

H(c)

Group exemption number MediumBullet

K Form of organization: Corporation Trust Association Other MediumBullet

L Year of formation: 1962

M State of legal domicile: CO

Part I

Summary

1	Briefly describe the organization’s mission or most significant activities: ASPEN CENTER FOR PHYSICS IS A SCIENTIFIC ORGANIZATION WHICH PROMOTES ORGANIZED RESEARCH IN PHYSICS, ASTROPHYSICS, AND RELATED FIELDS THROUGH PROGRAMS OF INDIVIDUAL AND COLLABORATIVE RESEARCH, WORKSHOPS, AND CONFERENCES, AS WELL AS PROMOTES THE EDUCATION OF THE GENERAL PUBLIC THROUGH PUBLIC LECTURES AND OTHER ACTIVITIES.
2	Check this box
3	Number of voting members of the governing body (Part VI, line 1a) ........	3	76
4	Number of independent voting members of the governing body (Part VI, line 1b) .....	4	8
5	Total number of individuals employed in calendar year 2013 (Part V, line 2a) ......	5	4
6	Total number of volunteers (estimate if necessary) .............	6	252
7a	Total unrelated business revenue from Part VIII, column (C), line 12 ........	7a	0
b	Net unrelated business taxable income from Form 990-T, line 34 .........	7b

		Prior Year	Current Year
8	Contributions and grants (Part VIII, line 1h) .........	527,826	888,730
9	Program service revenue (Part VIII, line 2g) .........	1,186,040	981,431
10	Investment income (Part VIII, column (A), lines 3, 4, and 7d ) ....	34,991	409,694
11	Other revenue (Part VIII, column (A), lines 5, 6d, 8c, 9c, 10c, and 11e)	30,173	34,664
12	Total revenue—add lines 8 through 11 (must equal Part VIII, column (A), line 12)...................	1,779,030	2,314,519
13	Grants and similar amounts paid (Part IX, column (A), lines 1–3 )...	282,131	138,123
14	Benefits paid to or for members (Part IX, column (A), line 4).....		0
15	Salaries, other compensation, employee benefits (Part IX, column (A), lines 5–10)	305,093	284,238
16a	Professional fundraising fees (Part IX, column (A), line 11e).....		0
b	Total fundraising expenses (Part IX, column (D), line 25) 2,804
17	Other expenses (Part IX, column (A), lines 11a–11d, 11f–24e)....	1,325,486	1,145,529
18	Total expenses. Add lines 13–17 (must equal Part IX, column (A), line 25)	1,912,710	1,567,890
19	Revenue less expenses. Subtract line 18 from line 12.......	-133,680	746,629
		Beginning of Current Year	End of Year
20	Total assets (Part X, line 16).............	3,725,207	4,371,312
21	Total liabilities (Part X, line 26).............	292,472	334,939
22	Net assets or fund balances. Subtract line 21 from line 20.....	3,432,735	4,036,373

Part II

Signature Block

Under penalties of perjury, I declare that I have examined this return, including accompanying schedules and statements, and to the best of my knowledge and belief, it is true, correct, and complete. Declaration of preparer (other than officer) is based on all information of which preparer has any knowledge.

Sign Here

	Signature of officer	Date

	Type or print name and title

Paid Preparer Use Only

Print/Type preparer's name

Preparer's signature

Date

Check if
self-employed

PTIN

Firm's name MediumBullet

Firm's EIN MediumBullet

Firm's address MediumBullet

Phone no.

May the IRS discuss this return with the preparer shown above? (see instructions) ............YesNo

For Paperwork Reduction Act Notice, see the separate instructions.

Cat. No. 11282Y

Form 990 (2013)

Page 2

Part III

Statement of Program Service Accomplishments

Check if Schedule O contains a response or note to any line in this Part III ..............

Briefly describe the organization’s mission: ASPEN CENTER FOR PHYSICS IS A SCIENTIFIC ORGANIZATION WHICH PROMOTES ORGANIZED RESEARCH IN PHYSICS, ASTROPHYSICS, AND RELATED FIELDS THROUGH PROGRAMS OF INDIVIDUAL AND COLLABORATIVE RESEARCH, WORKSHOPS, AND CONFERENCES, AS WELL AS PROMOTES THE EDUCATION OF THE GENERAL PUBLIC THROUGH PUBLIC LECTURES AND OTHER ACTIVITIES.

Did the organization undertake any significant program services during the year which were not listed on
the prior Form 990 or 990-EZ? ...................... Yes No

If "Yes," describe these new services on Schedule O.

Did the organization cease conducting, or make significant changes in how it conducts, any program services? ............................ Yes No

If "Yes," describe these changes on Schedule O.

Describe the organization’s program service accomplishments for each of its three largest program services, as measured by expenses. Section 501(c)(3) and 501(c)(4) organizations are required to report the amount of grants and allocations to others, the total expenses, and revenue, if any, for each program service reported.


4a	(Code: ) (Expenses $ 1,256,600 including grants of $ 138,123 ) (Revenue $ 981,431 )
	SINCE ITS INCEPTION IN 1962, ASPEN CENTER FOR PHYSICS HAS PROVIDED A UNIQUE PHYSICAL AND SCIENTIFIC ENVIRONMENT IDEALLY SUITED FOR STIMULATING INTERACTIONS,COLLABORATIONS, AND INNOVATION IN PHYSICS RESEARCH. FOR 4 MONTHS EACH SUMMER, MORE THAN 500 LEADING INTERNATIONAL RESEARCHERS, FREED FROM THE USUAL CONSTRAINTS AND DISTRACTIONS OF THEIR HOME INSTITUTIONS, COME TO ASPEN TO ENGAGE IN RESEARCH AT THE FOREFRONT OF THEIR FIELDS. RESEARCH IS CONDUCTED: (A) IN THE CONTEXT OF WORKSHOPS IN AREAS AT THE FOREFRONT OF PHYSICS RESEARCH; (B) IN SMALL GROUPS FOCUSED ON SPECIFIC PROJECTS; OR, (C) BY INDIVIDUAL INVESTIGATORS CARRYING OUT THEIR OWN RESEARCH. THE SCIENTIFIC PROGRAMS EMPHASIZE OPEN PROBLEMS AT THE CUTTING EDGE AND ARE DESIGNED TO MAXIMIZE INFORMAL INTERACTIONS WITHIN EACH AREA AND CROSS- FERTILIZATION BETWEEN DIFFERENT AREAS. WHILE CONTINUING TO PROVIDE LEADERSHIP IN THE CENTRAL AREAS OF PHYSICS (PARTICLE PHYSICS, ASTROPHYSICS, AND CONDENSED MATTER PHYSICS), ASPEN CENTER FOR PHYSICS HAS BEEN OPEN TO NEW DIRECTIONS IN PHYSICS AS WELL AS TO SCIENCE AT THE INTERFACE BETWEEN PHYSICS AND OTHER DISCIPLINES (BIOLOGY, CHEMISTRY, ENGINEERING, MATERIAL SCIENCE, AND MATHEMATICS). IN ADDITION, 7 TO 8 ONE-WEEK WINTER CONFERENCES BRING TOGETHER 60 TO 100 RESEARCHERS IN AREAS OF CURRENT INTEREST IN PHYSICS AND INTER-DISCIPLINARY PHYSICS RESEARCH. THE CENTER PROVIDES OFFICE SPACE, OFFICE SUPPLIES, MEETING SPACE, LIBRARY FACILITIES, AND NETWORK ACCESS TO ITS PARTICIPANTS. SUPPORT IS PROVIDED TO ALL INDIVIDUALS DURING THE SUMMER SESSION FOR WHOM LODGING IS ARRANGED BY ACP. PHYSICISTS' SUMMER BILLS ARE REDUCED BY THE AMOUNT OF SUPPORT; OVERPAYMENTS ARE REFUNDED BY CHECK. WINTER SUPPORT IS USUALLY AWARDED TO JUNIOR SCIENTISTS AND THOSE WITH A DEMONSTRATED NEED IN ORDER TO ATTEND. THIS SUPPORT IS USED TO REDUCE THE PHYSICIST'S WINTER BILL OR IS REFUNDED BY CHECK. DURING THE FISCAL YEAR ENDED MARCH 31, 2014, THERE WERE 561 SUMMER PARTICIPANTS (SUMMER 2013) AND 486 WINTER PARTICIPANTS (IN JANUARY, FEBRUARY, AND MARCH 2014).

4b	(Code: ) (Expenses $ 37,743 including grants of $ ) (Revenue $ )
	ASPEN CENTER FOR PHYSICS OUTREACH PROGRAM INCLUDES MANY OPTIONS AND AVENUES FOR THE PUBLIC TO BECOME INFORMED ABOUT CUTTING-EDGE PHYSICS RESEARCH, AND TO ENGAGE CHILDREN AND YOUTH IN OPPORTUNITIES FOR FURTHER EDUCATION IN THE SCIENCES. (1) PUBLIC LECTURES. A CORE OUTREACH ACTIVITY FOR THE CENTER. RENOWN PHYSICISTS DELIVER WINTER AND SUMMER LECTURES IN ASPEN VENUES DELINEATING THEIR CURRENT RESEARCH OR CURRENT SCIENTIFIC TOPICS OF GENERAL INTEREST. SUMMER ATTENDANCE AT 6 LECTURES WAS 958. WINTER ATTENDANCE AT 7 LECTURES WAS 1,242. (2) PUBLIC DIALOGUES. IN THE SUMMER, THE CENTER INVITES THE PUBLIC TO ITS CAMPUS TO HAVE DIALOGUES WITH VISITING PHYSICISTS ABOUT THEIR RESEARCH OR TOPICS OF INTEREST TO NON-SCIENTISTS. SUMMER 2013 ATTENDANCE WAS 498 AT 4 DIALOGUES. (3) SUMMER CHILDREN'S PICNICS. IN CONJUNCTION WITH THE ASPEN SCIENCE CENTER, THE ASPEN CENTER FOR PHYSICS HOSTS CHILDREN'S WEEKLY SUMMER PICNICS THAT INCLUDE A PRESENTATION BY A PARTICIPATING PHYSICIST. THIS AFFORDS CHILDREN THE CHANCE TO MEET WORKING PHYSICISTS, TO LEARN ABOUT THE PROFESSION AND TO LEARN SOME SCIENCE IN FUN AND ENTERTAINING WAYS. SUMMER 2013 ATTENDANCE AT 6 PICNICS WAS 535. (4) HIGH SCHOOL MENTOR PROGRAM. ACP HIRES RISING SENIOR PHYSICS STUDENTS FROM 5 VALLEY HIGH SCHOOLS TO WORK FOR A SUMMER WEEK AT THE CENTER TO SEE WHAT THEORETICAL PHYSICISTS DO AND TO CHAT WITH 2 OR 3 PHYSICISTS ABOUT COLLEGE, CAREERS, AND/OR SCIENCE. ABOUT 42 PHYSICISTS AND STUDENTS PARTICIPATED IN 2013. (5) HIGH SCHOOL MONTHLY RADIO SHOW--RADIO PHYSICS. VALLEY HIGH SCHOOL PHYSICS STUDENTS FROM 5 SCHOOLS INTERVIEW PHYSICISTS ON A MONTHLY RADIO SHOW. THIS INTRODUCES THE STUDENTS TO SCIENCE, PUBLIC SPEAKING, AND INFORMS THE LISTENING PUBLIC ABOUT CURRENT PHYSICS TOPICS. THERE WERE 34 STUDENT AND PHYSICIST PARTICIPANTS FOR THIS FISCAL YEAR. (6) PHYSICS CAFES. CO-HOSTED WITH ASPEN SCIENCE CENTER, BEFORE EACH PUBLIC LECTURE 2 OR 3 PHYSICISTS MEET WITH STUDENTS AND THE PUBLIC TO DISCUSS PHYSICS OR CAREERS IN SCIENCE, OR WHATEVER TOPICS THE PUBLIC MIGHT BRING UP. FROM JANUARY TO MARCH 2014, 602 PEOPLE ATTENDED 7 CAFES. (7) TELEVISION BROADCASTS. BEFORE MOST LECTURES AND SOME DIALOGUES, ACP CONDUCTS INTERVIEWS WITH ITS SPEAKERS. THESE AND THE TAPED LECTURES ARE AIRED SEVERAL TIMES DURING THE WINTER OR SUMMER SEASONS. IN ADDITION, ALL VIDEOS ARE AVAILABLE ON GRASSROOTS TV'S WEBSITE WITH LINKS FROM THE ACP WEBSITE. THERE ARE OVER 300 ACP SCIENTIFIC LECTURES AND INTERVIEWS AVAILABLE AT NO CHARGE ONLINE. (8) ASPEN CENTER FOR PHYSICS WEBSITE. IN AN ON-GOING PROJECT TO SHARE THE SCIENCE DONE AT THE CENTER, ACP HAS A SECTION OF ITS WEBSITE TITLED, "THE SCIENCE." THIS LISTS PUBLICATIONS GENERATED AT THE CENTER AND INCLUDES SLIDES FROM SCIENTIFIC COLLOQUIA ATTENDED BY SUMMER PARTICIPANTS, AS WELL AS OTHER SCIENTIFIC INFORMATION. TOTAL NUMBER OF PUBLIC PARTICIPANTS PHYSICALLY ATTENDING ACP OUTREACH FOR FISCAL YEAR 2014: 3,911 TOTAL NUMBER OF PUBLIC LISTENING TO RADIO BROADCASTS OR VIEWING VIDEOS ON TELEVISION OR ONLINE: UNKNOWN

4c	(Code: ) (Expenses $ including grants of $ ) (Revenue $ )












4d	Other program services (Describe in Schedule O.)
	(Expenses $ including grants of $ ) (Revenue $ )
4e	Total program service expenses1,294,343

Form 990 (2013)

Page 3

Part IV

Checklist of Required Schedules

Yes

Is the organization described in section 501(c)(3) or 4947(a)(1) (other than a private foundation)? If "Yes," complete Schedule A Click to see attachment

........................

Yes

Is the organization required to complete Schedule B, Schedule of Contributors (see instructions)? Click to see attachment

...

Yes

Did the organization engage in direct or indirect political campaign activities on behalf of or in opposition to candidates for public office? If "Yes," complete Schedule C, Part I..........

Section 501(c)(3) organizations. Did the organization engage in lobbying activities, or have a section 501(h) election in effect during the tax year? If "Yes," complete Schedule C, Part II........

Is the organization a section 501(c)(4), 501(c)(5), or 501(c)(6) organization that receives membership dues, assessments, or similar amounts as defined in Revenue Procedure 98-19? If "Yes," complete Schedule C,
Part III............................

Did the organization maintain any donor advised funds or any similar funds or accounts for which donors have the right to provide advice on the distribution or investment of amounts in such funds or accounts? If "Yes," complete Schedule D, Part I Click to see attachment

........................

Did the organization receive or hold a conservation easement, including easements to preserve open space,
the environment, historic land areas, or historic structures? If "Yes," complete Schedule D, Part II Click to see attachment

...

Did the organization maintain collections of works of art, historical treasures, or other similar assets? If "Yes," complete Schedule D, Part III Click to see attachment

....................

Did the organization report an amount in Part X, line 21 for escrow or custodial account liability; serve as a custodian for amounts not listed in Part X; or provide credit counseling, debt management, credit repair, or debt negotiation services? If "Yes," complete Schedule D, Part IV Click to see attachment

..............

Did the organization, directly or through a related organization, hold assets in temporarily restricted endowments, permanent endowments, or quasi-endowments? If "Yes," complete Schedule D, Part V Click to see attachment

......

Yes

If the organization’s answer to any of the following questions is "Yes," then complete Schedule D, Parts VI, VII, VIII, IX, or X as applicable.

Did the organization report an amount for land, buildings, and equipment in Part X, line 10?
If "Yes," complete Schedule D, Part VI. Click to see attachment

...................

11a

Yes

Did the organization report an amount for investments—other securities in Part X, line 12 that is 5% or more of its total assets reported in Part X, line 16? If "Yes," complete Schedule D, Part VII Click to see attachment

.......

11b

Did the organization report an amount for investments—program related in Part X, line 13 that is 5% or more of its total assets reported in Part X, line 16? If "Yes," complete Schedule D, Part VIII Click to see attachment

.......

11c

Did the organization report an amount for other assets in Part X, line 15 that is 5% or more of its total assets reported in Part X, line 16? If "Yes," complete Schedule D, Part IX Click to see attachment

............

11d

Did the organization report an amount for other liabilities in Part X, line 25? If "Yes," complete Schedule D, Part X Click to see attachment

11e

Did the organization’s separate or consolidated financial statements for the tax year include a footnote that addresses the organization’s liability for uncertain tax positions under FIN 48 (ASC 740)? If "Yes," complete Schedule D, Part X Click to see attachment

.........................

11f

Yes

12a

Did the organization obtain separate, independent audited financial statements for the tax year?
If "Yes," complete Schedule D, Parts XI and XII Click to see attachment

.................

12a

Yes

Was the organization included in consolidated, independent audited financial statements for the tax year? If "Yes," and if the organization answered "No" to line 12a, then completing Schedule D, Parts XI and XII is optional Click to see attachment

12b

Is the organization a school described in section 170(b)(1)(A)(ii)? If "Yes," complete Schedule E....

14a

Did the organization maintain an office, employees, or agents outside of the United States?.....

14a

Did the organization have aggregate revenues or expenses of more than $10,000 from grantmaking, fundraising, business, investment, and program service activities outside the United States, or aggregate foreign investments valued at $100,000 or more? If "Yes," complete Schedule F, Parts I and IV......... Click to see attachment

14b

Yes

Did the organization report on Part IX, column (A), line 3, more than $5,000 of grants or other assistance to or for any foreign organization? If “Yes,” complete Schedule F, Parts II and IV Click to see attachment

Did the organization report on Part IX, column (A), line 3, more than $5,000 of aggregate grants or other assistance to or for foreign individuals? If “Yes,” complete Schedule F, Parts III and IV... Click to see attachment

Yes

Did the organization report a total of more than $15,000 of expenses for professional fundraising services on Part IX, column (A), lines 6 and 11e? If "Yes," complete Schedule G, Part I (see instructions)....

Did the organization report more than $15,000 total of fundraising event gross income and contributions on Part VIII, lines 1c and 8a? If "Yes," complete Schedule G, Part II............

Did the organization report more than $15,000 of gross income from gaming activities on Part VIII, line 9a? If "Yes," complete Schedule G, Part III...................

20a

Did the organization operate one or more hospital facilities? If "Yes," complete Schedule H....

20a

If "Yes" to line 20a, did the organization attach a copy of its audited financial statements to this return?

20b

Form 990 (2013)

Page 4

Part IV

Checklist of Required Schedules (continued)

Did the organization report more than $5,000 of grants or other assistance to any domestic organization or government on Part IX, column (A), line 1? If “Yes,” complete Schedule I, Parts I and II... Click to see attachment

Did the organization report more than $5,000 of grants or other assistance to individuals in the United States on Part IX, column (A), line 2? If “Yes,” complete Schedule I, Parts I and III........ Click to see attachment

Yes

Did the organization answer "Yes" to Part VII, Section A, line 3, 4, or 5 about compensation of the organization’s current and former officers, directors, trustees, key employees, and highest compensated employees? If "Yes," complete Schedule J.......................

24a

Did the organization have a tax-exempt bond issue with an outstanding principal amount of more than $100,000 as of the last day of the year, that was issued after December 31, 2002? If “Yes,” answer lines 24b through 24d and complete Schedule K. If “No,” go to line 25a................

24a

Did the organization invest any proceeds of tax-exempt bonds beyond a temporary period exception?...

24b

Did the organization maintain an escrow account other than a refunding escrow at any time during the year
to defease any tax-exempt bonds?......................

24c

Did the organization act as an "on behalf of" issuer for bonds outstanding at any time during the year?...

24d

25a

Section 501(c)(3) and 501(c)(4) organizations. Did the organization engage in an excess benefit transaction with a disqualified person during the year? If "Yes," complete Schedule L, Part I........ Click to see attachment

25a

Is the organization aware that it engaged in an excess benefit transaction with a disqualified person in a prior year, and that the transaction has not been reported on any of the organization’s prior Forms 990 or 990-EZ? If "Yes," complete Schedule L, Part I................... Click to see attachment

25b

Did the organization report any amount on Part X, line 5, 6, or 22 for receivables from or payables to any current or former officers, directors, trustees, key employees, highest compensated employees, or disqualified persons? If so, complete Schedule L, Part II.................... Click to see attachment

Did the organization provide a grant or other assistance to an officer, director, trustee, key employee, substantial contributor or employee thereof, a grant selection committee member, or to a 35% controlled entity or family member of any of these persons? If "Yes," complete Schedule L, Part III......... Click to see attachment

Yes

Was the organization a party to a business transaction with one of the following parties (see Schedule L, Part IV instructions for applicable filing thresholds, conditions, and exceptions):

A current or former officer, director, trustee, or key employee? If "Yes," complete Schedule L, Part IV .......................... Click to see attachment

28a

A family member of a current or former officer, director, trustee, or key employee? If "Yes,"
complete Schedule L, Part IV..................... Click to see attachment

28b

An entity of which a current or former officer, director, trustee, or key employee (or a family member thereof) was an officer, director, trustee, or direct or indirect owner? If "Yes," complete Schedule L, Part IV... Click to see attachment

28c

Did the organization receive more than $25,000 in non-cash contributions? If "Yes," complete Schedule M..

Did the organization receive contributions of art, historical treasures, or other similar assets, or qualified conservation contributions? If "Yes," complete Schedule M.............

Did the organization liquidate, terminate, or dissolve and cease operations? If "Yes," complete Schedule N,
Part I...........................

Did the organization sell, exchange, dispose of, or transfer more than 25% of its net assets? If "Yes," complete Schedule N, Part II......................

Did the organization own 100% of an entity disregarded as separate from the organization under Regulations sections 301.7701-2 and 301.7701-3? If "Yes," complete Schedule R, Part I........

Was the organization related to any tax-exempt or taxable entity? If "Yes," complete Schedule R, Part II, III, or IV, and Part V, line 1........................

35a

Did the organization have a controlled entity within the meaning of section 512(b)(13)?

35a

If ‘Yes’ to line 35a, did the organization receive any payment from or engage in any transaction with a controlled entity within the meaning of section 512(b)(13)? If "Yes," complete Schedule R, Part V, line 2...

35b

Section 501(c)(3) organizations. Did the organization make any transfers to an exempt non-charitable related organization? If "Yes," complete Schedule R, Part V, line 2.............

Did the organization conduct more than 5% of its activities through an entity that is not a related organization and that is treated as a partnership for federal income tax purposes? If "Yes," complete Schedule R, Part VI

Did the organization complete Schedule O and provide explanations in Schedule O for Part VI, lines 11b and 19? Note. All Form 990 filers are required to complete Schedule O. ............

Yes

Form 990 (2013)

Page 5

Part V

Statements Regarding Other IRS Filings and Tax Compliance

Check if Schedule O contains a response or note to any line in this Part V ..............

Yes

Enter the number reported in Box 3 of Form 1096 Enter -0- if not applicable ..

Enter the number of Forms W-2G included in line 1a. Enter -0- if not applicable .

Did the organization comply with backup withholding rules for reportable payments to vendors and reportable gaming (gambling) winnings to prize winners? ..................

Yes

Enter the number of employees reported on Form W-3, Transmittal of Wage and
Tax Statements, filed for the calendar year ending with or within the year covered by this return ..................

If at least one is reported on line 2a, did the organization file all required federal employment tax returns?
Note. If the sum of lines 1a and 2a is greater than 250, you may be required to e-file (see instructions)

Yes

Did the organization have unrelated business gross income of $1,000 or more during the year?...

If “Yes,” has it filed a Form 990-T for this year? If “No” to line 3b, provide an explanation in Schedule O...

At any time during the calendar year, did the organization have an interest in, or a signature or other authority over, a financial account in a foreign country (such as a bank account, securities account, or other financial account)?..........................

If "Yes," enter the name of the foreign country: MediumBullet

See instructions for filing requirements for Form TD F 90-22.1, Report of Foreign Bank and Financial Accounts.

Was the organization a party to a prohibited tax shelter transaction at any time during the tax year?..

Did any taxable party notify the organization that it was or is a party to a prohibited tax shelter transaction?

If "Yes," to line 5a or 5b, did the organization file Form 8886-T? ............

Does the organization have annual gross receipts that are normally greater than $100,000, and did the organization solicit any contributions that were not tax deductible as charitable contributions?...

If "Yes," did the organization include with every solicitation an express statement that such contributions or gifts were not tax deductible?........................

Organizations that may receive deductible contributions under section 170(c).

Did the organization receive a payment in excess of $75 made partly as a contribution and partly for goods and services provided to the payor?....................

If "Yes," did the organization notify the donor of the value of the goods or services provided?.....

Did the organization sell, exchange, or otherwise dispose of tangible personal property for which it was required to file Form 8282?...........................

If "Yes," indicate the number of Forms 8282 filed during the year ....

Did the organization receive any funds, directly or indirectly, to pay premiums on a personal benefit contract?............................

Did the organization, during the year, pay premiums, directly or indirectly, on a personal benefit contract?..

If the organization received a contribution of qualified intellectual property, did the organization file Form 8899 as required?............................

If the organization received a contribution of cars, boats, airplanes, or other vehicles, did the organization file a Form 1098-C?..........................

Sponsoring organizations maintaining donor advised funds and section 509(a)(3) supporting organizations. Did the supporting organization, or a donor advised fund maintained by a sponsoring organization, have excess business holdings at any time during the year?............

Sponsoring organizations maintaining donor advised funds.

Did the organization make any taxable distributions under section 4966?..........

Did the organization make a distribution to a donor, donor advisor, or related person?.......

Section 501(c)(7) organizations. Enter:

Initiation fees and capital contributions included on Part VIII, line 12 ...

10a

Gross receipts, included on Form 990, Part VIII, line 12, for public use of club facilities

10b

Section 501(c)(12) organizations. Enter:

Gross income from members or shareholders .........

11a

Gross income from other sources (Do not net amounts due or paid to other sources against amounts due or received from them.) ..........

11b

12a

Section 4947(a)(1) non-exempt charitable trusts. Is the organization filing Form 990 in lieu of Form 1041?

12a

If "Yes," enter the amount of tax-exempt interest received or accrued during the year. ....................

12b

Section 501(c)(29) qualified nonprofit health insurance issuers.

Is the organization licensed to issue qualified health plans in more than one state?
Note. See the instructions for additional information the organization must report on Schedule O.

13a

Enter the amount of reserves the organization is required to maintain by the states in which the organization is licensed to issue qualified health plans ....

13b

Enter the amount of reserves on hand ............

13c

14a

Did the organization receive any payments for indoor tanning services during the tax year?.....

14a

If "Yes," has it filed a Form 720 to report these payments? If "No," provide an explanation in Schedule O..

14b

Form 990 (2013)

Page 6

Part VI

Governance, Management, and Disclosure For each "Yes" response to lines 2 through 7b below, and for a "No" response to lines 8a, 8b, or 10b below, describe the circumstances, processes, or changes in Schedule O. See instructions.

Check if Schedule O contains a response or note to any line in this Part VI ..............

Section A. Governing Body and Management

Yes

Enter the number of voting members of the governing body at the end of the tax year .....................

If there are material differences in voting rights among members of the governing body, or if the governing body delegated broad authority to an executive committee or similar committee, explain in Schedule O.

Enter the number of voting members included in line 1a, above, who are independent ...................

Did any officer, director, trustee, or key employee have a family relationship or a business relationship with any other officer, director, trustee, or key employee? .................

Did the organization delegate control over management duties customarily performed by or under the direct supervision of officers, directors or trustees, or key employees to a management company or other person? .

Did the organization make any significant changes to its governing documents since the prior Form 990 was filed? ...........................

Did the organization become aware during the year of a significant diversion of the organization’s assets? .

Did the organization have members or stockholders? ................

Did the organization have members, stockholders, or other persons who had the power to elect or appoint one or more members of the governing body? ....................

Are any governance decisions of the organization reserved to (or subject to approval by) members, stockholders, or persons other than the governing body? ...................

Did the organization contemporaneously document the meetings held or written actions undertaken during the year by the following:

The governing body? .........................

Yes

Each committee with authority to act on behalf of the governing body? ............

Yes

Is there any officer, director, trustee, or key employee listed in Part VII, Section A, who cannot be reached at the organization’s mailing address? If "Yes," provide the names and addresses in Schedule O.......

Section B. Policies (This Section B requests information about policies not required by the Internal Revenue Code.)

Yes

10a

Did the organization have local chapters, branches, or affiliates? ............

10a

If "Yes," did the organization have written policies and procedures governing the activities of such chapters, affiliates, and branches to ensure their operations are consistent with the organization's exempt purposes?

10b

11a

Has the organization provided a complete copy of this Form 990 to all members of its governing body before filing the form? ............................

11a

Yes

Describe in Schedule O the process, if any, used by the organization to review this Form 990. .....

12a

Did the organization have a written conflict of interest policy? If "No," go to line 13.......

12a

Yes

Were officers, directors, or trustees, and key employees required to disclose annually interests that could give rise to conflicts? ..........................

12b

Did the organization regularly and consistently monitor and enforce compliance with the policy? If "Yes," describe in Schedule O how this was done.......................

12c

Did the organization have a written whistleblower policy? ...............

Yes

Did the organization have a written document retention and destruction policy? .........

Yes

Did the process for determining compensation of the following persons include a review and approval by independent persons, comparability data, and contemporaneous substantiation of the deliberation and decision?

The organization’s CEO, Executive Director, or top management official ...........

15a

Yes

Other officers or key employees of the organization ................

15b

Yes

If "Yes" to line 15a or 15b, describe the process in Schedule O (see instructions).

16a

Did the organization invest in, contribute assets to, or participate in a joint venture or similar arrangement with a taxable entity during the year? ......................

16a

If "Yes," did the organization follow a written policy or procedure requiring the organization to evaluate its participation in joint venture arrangements under applicable federal tax law, and take steps to safeguard the organization’s exempt status with respect to such arrangements? ............

16b

Section C. Disclosure

List the States with which a copy of this Form 990 is required to be filed MediumBullet

Section 6104 requires an organization to make its Form 1023 (or 1024 if applicable), 990, and 990-T (501(c)(3)s only) available for public inspection. Indicate how you made these available. Check all that apply.

Own website Another's website Upon request Other (explain in Schedule O)

Describe in Schedule O whether (and if so, how) the organization made its governing documents, conflict of interest policy, and financial statements available to the public during the tax year.

State the name, physical address, and telephone number of the person who possesses the books and records of the organization:
MediumBullet

PAULA JOHNSON700 W GILLESPIE STASPENCO81611 (970) 925-2585

Form 990 (2013)

Page 7

Part VII

Compensation of Officers, Directors,Trustees, Key Employees, Highest Compensated Employees, and Independent Contractors

Check if Schedule O contains a response or note to any line in this Part VII ..............

Section A. Officers, Directors, Trustees, Key Employees, and Highest Compensated Employees

1a Complete this table for all persons required to be listed. Report compensation for the calendar year ending with or within the organization’s tax year.
RoundBullet

List all of the organization’s current officers, directors, trustees (whether individuals or organizations), regardless of amount
of compensation. Enter -0- in columns (D), (E), and (F) if no compensation was paid.

List all of the organization’s current key employees, if any. See instructions for definition of "key employee."

List the organization’s five current highest compensated employees (other than an officer, director, trustee or key employee)
who received reportable compensation (Box 5 of Form W-2 and/or Box 7 of Form 1099-MISC) of more than $100,000 from the
organization and any related organizations.

List all of the organization’s former officers, key employees, or highest compensated employees who received more than $100,000
of reportable compensation from the organization and any related organizations.

List all of the organization’s former directors or trustees that received, in the capacity as a former director or trustee of the
organization, more than $10,000 of reportable compensation from the organization and any related organizations.

List persons in the following order: individual trustees or directors; institutional trustees; officers; key employees; highest
compensated employees; and former such persons.

Check this box if neither the organization nor any related organization compensated any current officer, director, or trustee.

(A) Name and Title	(B) Average hours per week (list any hours for related organizations below dotted line)	(C) Position (do not check more than one box, unless person is both an officer and a director/trustee)		(D) Reportable compensation from the organization (W- 2/1099-MISC)	(E) Reportable compensation from related organizations (W- 2/1099-MISC)	(F) Estimated amount of other compensation from the organization and related organizations
(A) Name and Title
(1) CHARLES STEVENS........................................................................ CHAIRMAN	1.00 .......................	X	X	0	0	0
(2) KARIN RABE........................................................................ PRESIDENT	15.00 .......................	X	X	0	0	0
(3) JOSH FRIEMAN........................................................................ VICE PRESIDE	1.00 .......................	X	X	0	0	0
(4) JOERG SCHMALIAN........................................................................ TREASURER	2.00 .......................	X	X	0	0	0
(5) JOHN TERNING........................................................................ CORPORATE SE	1.00 .......................	X	X	0	0	0
(6) ZOLTAN LIGETI........................................................................ ASST SCI SEC	1.00 .......................	X	X	0	0	0
(7) LEONID GLAZMAN........................................................................ SCIENTIFIC S	1.00 .......................	X	X	0	0	0
(8) MARC KAMIONKOWSKI........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(9) CLIFFORD JOHNSON........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(10) ANDREW MILLIS........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(11) ADAM BURROWS........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(12) HIROSI OOGURI........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(13) ELIZABETH SIMMONS........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(14) EDWARD HUDSON........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(15) CHETAN NAYAK........................................................................ TRUSTEE	.50 .......................	X		0	0	0
(16) JANE KELLY........................................................................ ADMIN VICE P	40.00 .......................		X	122,000	0	10,820

Form 990 (2013)

Page 8

Part VII

Section A. Officers, Directors, Trustees, Key Employees, and Highest Compensated Employees (continued)

(A) Name and Title	(B) Average hours per week (list any hours for related organizations below dotted line)	(C) Position (do not check more than one box, unless person is both an officer and a director/trustee)						(D) Reportable compensation from the organization (W- 2/1099-MISC)	(E) Reportable compensation from related organizations (W- 2/1099-MISC)	(F) Estimated amount of other compensation from the organization and related organizations
(A) Name and Title

1b	Sub-Total................
c	Total from continuation sheets to Part VII, Section A....
d	Total (add lines 1b and 1c)............	122,000	10,820

Total number of individuals (including but not limited to those listed above) who received more than $100,000 of reportable compensation from the organization MediumBullet

Yes

Did the organization list any former officer, director or trustee, key employee, or highest compensated employee on line 1a? If "Yes," complete Schedule J for such individual ..............

For any individual listed on line 1a, is the sum of reportable compensation and other compensation from the organization and related organizations greater than $150,000? If "Yes," complete Schedule J for such individual...........................

Did any person listed on line 1a receive or accrue compensation from any unrelated organization or individual for services rendered to the organization? If "Yes," complete Schedule J for such person ........

Section B. Independent Contractors

Complete this table for your five highest compensated independent contractors that received more than $100,000 of compensation from the organization. Report compensation for the calendar year ending with or within the organization’s tax year.

(A) Name and business address	(B) Description of services	(C) Compensation





2 Total number of independent contractors (including but not limited to those listed above) who received more than $100,000 of compensation from the organization

Form 990 (2013)

Page 9

Part VIII

Statement of Revenue

Check if Schedule O contains a response or note to any line in this Part VIII .............

				(A) Total revenue	(B) Related or exempt function revenue	(C) Unrelated business revenue	(D) Revenue excluded from tax under sections 512-514
1a	Federated campaigns..1a
b	Membership dues....1b
c	Fundraising events....1c
d	Related organizations...1d
e	Government grants (contributions)1e		319,771

f	All other contributions, gifts, grants, and similar amounts not included above1f		568,959

g	Noncash contributions included in lines 1a-1f:$
h	Total. Add lines 1a-1f.......			888,730
			Business Code
2a	PARTICIPANT HOUSING REIMBURSE		541700	526,055	526,055
b	REGISTRATION FEES		541700	370,217	370,217
c	OTHER PARTICIPANT CHARGES		541700	85,159	85,159
d
e
f	All other program service revenue .
g	Total. Add lines 2a–2f........			981,431
3	Investment income (including dividends, interest, and other similar amounts).......			41,919			41,919
4	Income from investment of tax-exempt bond proceeds..
5	Royalties...........
		(i) Real	(ii) Personal
6a	Gross rents	30,343
b	Less: rental expenses
c	Rental income or (loss)	30,343
d	Net rental income or (loss).......			30,343			30,343
		(i) Securities	(ii) Other
7a	Gross amount from sales of assets other than inventory	1,651,811
b	Less: cost or other basis and sales expenses	1,284,036
c	Gain or (loss)	367,775
d	Net gain or (loss)..........			367,775			367,775
8a	Gross income from fundraising events (not including $ of contributions reported on line 1c). See Part IV, line 18 ..
	a
b	Less: direct expenses ...b
c	Net income or (loss) from fundraising events..
9a	Gross income from gaming activities. See Part IV, line 19 ...
	a
b	Less: direct expenses ...b
c	Net income or (loss) from gaming activities...
10a	Gross sales of inventory, less returns and allowances .
	a
b	Less: cost of goods sold ..b
c	Net income or (loss) from sales of inventory..
Miscellaneous Revenue			Business Code
11a	OTHER REVENUE		541700	4,321	4,321
b
c
d	All other revenue ....
e	Total. Add lines 11a–11d ......			4,321
12	Total revenue. See Instructions......			2,314,519	985,752		440,037

Form 990 (2013)

Page 10

Part IX

Statement of Functional Expenses

Section 501(c)(3) and 501(c)(4) organizations must complete all columns. All other organizations must complete column (A).Check if Schedule O contains a response or note to any line in this Part IX ...............

Do not include amounts reported on lines 6b, 7b, 8b, 9b, and 10b of Part VIII.		(A) Total expenses	(B) Program service expenses	(C) Management and general expenses	(D) Fundraising expenses
1	Grants and other assistance to governments and organizations in the United States. See Part IV, line 21
2	Grants and other assistance to individuals in the United States. See Part IV, line 22	70,913	70,913
3	Grants and other assistance to governments, organizations, and individuals outside the United States. See Part IV, lines 15 and 16	67,210	67,210
4	Benefits paid to or for members
5	Compensation of current officers, directors, trustees, and key employees ....	123,500	80,275	41,990	1,235
6	Compensation not included above, to disqualified persons (as defined under section 4958(f)(1)) and persons described in section 4958(c)(3)(B) ....
7	Other salaries and wages	134,552	90,547	42,692	1,313
8	Pension plan accruals and contributions (include section 401(k) and 403(b) employer contributions) ....	4,940	1,729	3,162	49
9	Other employee benefits .......	3,000	1,050	1,920	30
10	Payroll taxes ...........	18,246	11,971	6,098	177
11	Fees for services (non-employees):
a	Management ......
b	Legal .........
c	Accounting ...........	9,381		9,381
d	Lobbying ...........
e	Professional fundraising services. See Part IV, line 17
f	Investment management fees ......	13,063		13,063
g	Other (If line 11g amount exceeds 10% of line 25, column (A) amount, list line 11g expenses on Schedule O) ........	28,026	6,146	21,880
12	Advertising and promotion ....
13	Office expenses .......	27,787	24,336	3,451
14	Information technology ......	18,059	7,947	10,112
15	Royalties ..
16	Occupancy ...........	66,230	29,103	37,127
17	Travel ............	1,052	10	1,042
18	Payments of travel or entertainment expenses for any federal, state, or local public officials ......
19	Conferences, conventions, and meetings ....
20	Interest ...........
21	Payments to affiliates .......
22	Depreciation, depletion, and amortization .....	125,639	55,281	70,358
23	Insurance ..............	14,601	6,425	8,176
24	Other expenses. Itemize expenses not covered above (List miscellaneous expenses in line 24e. If line 24e amount exceeds 10% of line 25, column (A) amount, list line 24e expenses on Schedule O.)
a	HOUSING RENTS	644,871	644,871
b	PARTCPNT EXP- REMIBURSED	82,445	82,445
c	RENTAL CLEANING	65,830	65,830
d	PUBLIC LECTURES	28,604	28,604
e	All other expenses	19,941	19,650	291
25	Total functional expenses. Add lines 1 through 24e	1,567,890	1,294,343	270,743	2,804
26	Joint costs. Complete this line only if the organization reported in column (B) joint costs from a combined educational campaign and fundraising solicitation. Check here if following SOP 98-2 (ASC 958-720).

Form 990 (2013)

Page 11


				(A) Beginning of year		(B) End of year
1	Cash–non-interest-bearing .............			573,341	1	404,759
2	Savings and temporary cash investments .........			254,390	2	255,630
3	Pledges and grants receivable, net ...........			14,683	3	544,733
4	Accounts receivable, net .............			6,527	4	6,940
5	Loans and other receivables from current and former officers, directors, trustees, key employees, and highest compensated employees. Complete Part II of Schedule L ..................
					5
6	Loans and other receivables from other disqualified persons (as defined under section 4958(f)(1)), persons described in section 4958(c)(3)(B), and contributing employers and sponsoring organizations of section 501(c)(9) voluntary employees' beneficiary organizations (see instructions) Complete Part II of Schedule L
					6
7	Notes and loans receivable, net .............				7
8	Inventories for sale or use ..............				8
9	Prepaid expenses and deferred charges ..........			18,949	9	18,068
10a	Land, buildings, and equipment: cost or other basis. Complete Part VI of Schedule D	10a	5,392,160
b	Less: accumulated depreciation .....	10b	4,085,760	1,397,039	10c	1,306,400
11	Investments—publicly traded securities ..........			1,460,278	11	1,834,782
12	Investments—other securities. See Part IV, line 11 .....				12
13	Investments—program-related. See Part IV, line 11 .....				13
14	Intangible assets ...............				14
15	Other assets. See Part IV, line 11 ...........				15
16	Total assets. Add lines 1 through 15 (must equal line 34)......			3,725,207	16	4,371,312
17	Accounts payable and accrued expenses .........			8,867	17	28,899
18	Grants payable .................				18
19	Deferred revenue ................			283,605	19	306,040
20	Tax-exempt bond liabilities .............				20
21	Escrow or custodial account liability. Complete Part IV of Schedule D..				21
22	Loans and other payables to current and former officers, directors, trustees, key employees, highest compensated employees, and disqualified
	persons. Complete Part II of Schedule L..........				22
23	Secured mortgages and notes payable to unrelated third parties ..				23
24	Unsecured notes and loans payable to unrelated third parties ....				24
25	Other liabilities (including federal income tax, payables to related third parties, and other liabilities not included on lines 17-24). Complete Part X of Schedule D....................				25
26	Total liabilities. Add lines 17 through 25.........			292,472	26	334,939
	Organizations that follow SFAS 117 (ASC 958), check here and complete lines 27 through 29, and lines 33 and 34.
27	Unrestricted net assets ..............			3,333,531	27	3,546,334
28	Temporarily restricted net assets ...........			99,204	28	490,039
29	Permanently restricted net assets ...........				29
	Organizations that do not follow SFAS 117 (ASC 958), check here and complete lines 30 through 34.
30	Capital stock or trust principal, or current funds ........				30
31	Paid-in or capital surplus, or land, building or equipment fund .....				31
32	Retained earnings, endowment, accumulated income, or other funds				32
33	Total net assets or fund balances ...........			3,432,735	33	4,036,373
34	Total liabilities and net assets/fund balances ........			3,725,207	34	4,371,312

Form 990 (2013)

Page 12

Part XI

Reconcilliation of Net Assets

Check if Schedule O contains a response or note to any line in this Part XI ..............

Total revenue (must equal Part VIII, column (A), line 12) ............

2,314,519

Total expenses (must equal Part IX, column (A), line 25) ............

1,567,890

Revenue less expenses. Subtract line 2 from line 1 ..............

746,629

Net assets or fund balances at beginning of year (must equal Part X, line 33, column (A)) ..

3,432,735

Net unrealized gains (losses) on investments ...............

-142,991

Donated services and use of facilities .................

Investment expenses .....................

Prior period adjustments .....................

Other changes in net assets or fund balances (explain in Schedule O) ........

Net assets or fund balances at end of year. Combine lines 3 through 9 (must equal Part X, line 33, column (B))

4,036,373

Part XII

Financial Statements and Reporting

Check if Schedule O contains a response or note to any line in this Part XII .............

Yes

Accounting method used to prepare the Form 990: Cash Accrual Other
If the organization changed its method of accounting from a prior year or checked "Other," explain in
Schedule O.

Were the organization’s financial statements compiled or reviewed by an independent accountant?

If ‘Yes,’ check a box below to indicate whether the financial statements for the year were compiled or reviewed on a separate basis, consolidated basis, or both:

Separate basis Consolidated basis Both consolidated and separate basis

Were the organization’s financial statements audited by an independent accountant?

Yes

If ‘Yes,’ check a box below to indicate whether the financial statements for the year were audited on a separate basis, consolidated basis, or both:

Separate basis Consolidated basis Both consolidated and separate basis

If "Yes," to line 2a or 2b, does the organization have a committee that assumes responsibility for oversight of the audit, review, or compilation of its financial statements and selection of an independent accountant?

Yes

If the organization changed either its oversight process or selection process during the tax year, explain in Schedule O.

As a result of a federal award, was the organization required to undergo an audit or audits as set forth in the Single Audit Act and OMB Circular A-133?

If "Yes," did the organization undergo the required audit or audits? If the organization did not undergo the required audit or audits, explain why in Schedule O and describe any steps taken to undergo such audits.

Form 990 (2013)

Form 990, Special Condition Description:

Special Condition Description

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE A
(Form 990 or 990EZ)

Department of the Treasury
Internal Revenue Service

Public Charity Status and Public Support

Complete if the organization is a section 501(c)(3) organization or a section 4947(a)(1) nonexempt charitable trust.

Attach to Form 990 or Form 990-EZ. right arrow

See separate instructions.
right arrow

Information about Schedule A (Form 990 or 990-EZ) and its instructions is at www.irs.gov/form990.

OMB No. 1545-0047

2013

Open to Public
Inspection

Name of the organization

ASPEN CENTER FOR PHYSICS

Employer identification number

84-6059504

Part I

Reason for Public Charity Status (All organizations must complete this part.) See instructions.

The organization is not a private foundation because it is: (For lines 1 through 11, check only one box.)

A church, convention of churches, or association of churches described in section 170(b)(1)(A)(i).

A school described in section 170(b)(1)(A)(ii). (Attach Schedule E.)

A hospital or a cooperative hospital service organization described in section 170(b)(1)(A)(iii).

A medical research organization operated in conjunction with a hospital described in section 170(b)(1)(A)(iii). Enter the hospital's name, city, and state:

An organization operated for the benefit of a college or university owned or operated by a governmental unit described in

section 170(b)(1)(A)(iv). (Complete Part II.)

A federal, state, or local government or governmental unit described in section 170(b)(1)(A)(v).

An organization that normally receives a substantial part of its support from a governmental unit or from the general public described in section 170(b)(1)(A)(vi). (Complete Part II.)

A community trust described in section 170(b)(1)(A)(vi). (Complete Part II.)

An organization that normally receives: (1) more than 331/3% of its support from contributions, membership fees, and gross

receipts from activities related to its exempt functions—subject to certain exceptions, and (2) no more than 331/3% of

its support from gross investment income and unrelated business taxable income (less section 511 tax) from businesses

acquired by the organization after June 30, 1975. See section 509(a)(2). (Complete Part III.)

An organization organized and operated exclusively to test for public safety. See section 509(a)(4).

An organization organized and operated exclusively for the benefit of, to perform the functions of, or to carry out the purposes of one or more publicly supported organizations described in section 509(a)(1) or section 509(a)(2). See section 509(a)(3). Check the box that describes the type of supporting organization and complete lines 11e through 11h.

Type I

Type II

Type III - Functionally integrated

Type III - Non-functionally integrated

By checking this box, I certify that the organization is not controlled directly or indirectly by one or more disqualified persons other than foundation managers and other than one or more publicly supported organizations described in section 509(a)(1) or section 509(a)(2).

If the organization received a written determination from the IRS that it is a Type I, Type II, or Type III supporting organization, check this box ..................................................

Since August 17, 2006, has the organization accepted any gift or contribution from any of the
following persons?

(i) A person who directly or indirectly controls, either alone or together with persons described in (ii)

Yes

and (iii) below, the governing body of the supported organization? ................

11g(i)

(ii) A family member of a person described in (i) above? ......................

11g(ii)

(iii) A 35% controlled entity of a person described in (i) or (ii) above? ................

11g(iii)

Provide the following information about the supported organization(s).

(i) Name of supported organization	(ii) EIN	(iv) Is the organization in col. (i) listed in your governing document?		(v) Did you notify the organization in col. (i) of your support?		(vi) Is the organization in col. (i) organized in the U.S.?		(vii) Amount of monetary support
(i) Name of supported organization	(ii) EIN	Yes	No	Yes	No	Yes	No	(vii) Amount of monetary support


Total

For Paperwork Reduction Act Notice, see the Instructions for Form 990 or 990EZ.

Cat. No. 11285F

Schedule A (Form 990 or 990-EZ) 2013

Page 2

Part II

Support Schedule for Organizations Described in Sections 170(b)(1)(A)(iv) and 170(b)(1)(A)(vi)
(Complete only if you checked the box on line 5, 7, or 8 of Part I or if the organization failed to qualify under Part III. If the organization fails to qualify under the tests listed below, please complete Part III.)

Section A. Public Support

Calendar year (or fiscal year beginning in)		(a) 2009	(b) 2010	(c) 2011	(d) 2012	(e) 2013	(f) Total
1	Gifts, grants, contributions, and membership fees received. (Do not include any "unusual grants.") ....	554,305	572,223	541,050	527,826	888,730	3,084,134
2	Tax revenues levied for the organization's benefit and either paid to or expended on its behalf.......
3	The value of services or facilities furnished by a governmental unit to the organization without charge..
4	Total. Add lines 1 through 3	554,305	572,223	541,050	527,826	888,730	3,084,134
5	The portion of total contributions by each person (other than a governmental unit or publicly supported organization) included on line 1 that exceeds 2% of the amount shown on line 11, column (f)..						483,116
6	Public support. Subtract line 5 from line 4.						2,601,018

Section B. Total Support

Calendar year (or fiscal year beginning in)		(a) 2009	(b) 2010	(c) 2011	(d) 2012	(e) 2013	(f) Total
7	Amounts from line 4..	554,305	572,223	541,050	527,826	888,730	3,084,134
8	Gross income from interest, dividends, payments received on securities loans, rents, royalties and income from similar sources...	32,974	46,449	36,948	61,191	72,262	249,824
9	Net income from unrelated business activities, whether or not the business is regularly carried on..
10	Other income. Do not include gain or loss from the sale of capital assets (Explain in Part IV.)..
11	Total support (Add lines 7 through 10).						3,333,958

Gross receipts from related activities, etc. (see instructions) ..................

5,599,445

First five years. If the Form 990 is for the organization's first, second, third, fourth, or fifth tax year as a 501(c)(3) organization, check this box and stop here................................................. right arrow

Section C. Computation of Public Support Percentage

Public support percentage for 2013 (line 6, column (f) divided by line 11, column (f)) .........

78.020 %

Public support percentage for 2012 Schedule A, Part II, line 14 ...............

87.810 %

16a

33 1/3% support test—2013. If the organization did not check the box on line 13, and line 14 is 33 1/3% or more, check this box
and stop here. The organization qualifies as a publicly supported organization ....................... right arrow

33 1/3% support test—2012. If the organization did not check a box on line 13 or 16a, and line 15 is 33 1/3% or more, check this
box and stop here. The organization qualifies as a publicly supported organization ..................... right arrow

17a

10%-facts-and-circumstances test—2013. If the organization did not check a box on line 13, 16a, or 16b, and line 14
is 10% or more, and if the organization meets the "facts-and-circumstances" test, check this box and stop here. Explain
in Part IV how the organization meets the "facts-and-circumstances" test. The organization qualifies as a publicly supported
organization ..................................................... right arrow

10%-facts-and-circumstances test—2012. If the organization did not check a box on line 13, 16a, 16b, or 17a, and line
15 is 10% or more, and if the organization meets the "facts-and-circumstances" test, check this box and stop here.
Explain in Part IV how the organization meets the "facts-and-circumstances" test. The organization qualifies as a publicly
supported organization ................................................ right arrow

Private foundation. If the organization did not check a box on line 13, 16a, 16b, 17a, or 17b, check this box and see
instructions ..................................................... right arrow

Schedule A (Form 990 or 990-EZ) 2013

Page 3

Part III

Support Schedule for Organizations Described in Section 509(a)(2)
(Complete only if you checked the box on line 9 of Part I or if the organization failed to qualify under Part II. If the organization fails to qualify under the tests listed below, please complete Part II.)

Section A. Public Support

Calendar year (or fiscal year beginning in)		(a) 2009	(b) 2010	(c) 2011	(d) 2012	(e) 2013	(f) Total
1	Gifts, grants, contributions, and membership fees received. (Do not include any "unusual grants.") .
2	Gross receipts from admissions, merchandise sold or services performed, or facilities furnished in any activity that is related to the organization's tax-exempt purpose......
3	Gross receipts from activities that are not an unrelated trade or business under section 513..
4	Tax revenues levied for the organization's benefit and either paid to or expended on its behalf...
5	The value of services or facilities furnished by a governmental unit to the organization without charge..
6	Total. Add lines 1 through 5.
7a	Amounts included on lines 1, 2, and 3 received from disqualified persons...
b	Amounts included on lines 2 and 3 received from other than disqualified persons that exceed the greater of $5,000 or 1% of the amount on line 13 for the year.
c	Add lines 7a and 7b..
8	Public support (Subtract line 7c from line 6.)

Section B. Total Support

Calendar year (or fiscal year beginning in)		(a) 2009	(b) 2010	(c) 2011	(d) 2012	(e) 2013	(f) Total
9	Amounts from line 6...
10a	Gross income from interest, dividends, payments received on securities loans, rents, royalties and income from similar sources..
b	Unrelated business taxable income (less section 511 taxes) from businesses acquired after June 30, 1975.
c	Add lines 10a and 10b.
11	Net income from unrelated business activities not included in line 10b, whether or not the business is regularly carried on.
12	Other income. Do not include gain or loss from the sale of capital assets (Explain in Part IV.) ..
13	Total support. (Add lines 9, 10c, 11, and 12.)..

First five years. If the Form 990 is for the organization's first, second, third, fourth, or fifth tax year as a 501(c)(3) organization,
check this box and stop here............................................. right arrow

Section C. Computation of Public Support Percentage

Public support percentage for 2013 (line 8, column (f) divided by line 13, column (f)) .........

Public support percentage from 2012 Schedule A, Part III, line 15 ...............

Section D. Computation of Investment Income Percentage

Investment income percentage for 2013 (line 10c, column (f) divided by line 13, column (f)) ......

Investment income percentage from 2012 Schedule A, Part III, line 17 .............

19a

33 1/3% support tests—2013. If the organization did not check the box on line 14, and line 15 is more than 33 1/3%, and line 17 is not more than 33 1/3%, check this box and stop here. The organization qualifies as a publicly supported organization ........ right arrow

33 1/3% support tests—2012. If the organization did not check a box on line 14 or line 19a, and line 16 is more than 33 1/3% and line 18 is not more than 33 1/3%, check this box and stop here. The organization qualifies as a publicly supported organization ..... right arrow

Private foundation. If the organization did not check a box on line 14, 19a, or 19b, check this box and see instructions ..... right arrow

Schedule A (Form 990 or 990-EZ) 2013

Page 4

Part IV

Supplemental Information. Provide the explanations required by Part II, line 10; Part II, line 17a or 17b; and Part III, line 12. Also complete this part for any additional information. (See instructions).

Facts And Circumstances Test

Explanation

Schedule A (Form 990 or 990-EZ) 2013

Additional Data

Software ID:
Software Version:

- TIN:

Schedule B
(Form 990, 990-EZ,
or 990-PF)

Department of the Treasury
Internal Revenue Service

Schedule of Contributors

Attach to Form 990, 990-EZ, or 990-PF.

Information about Schedule B (Form 990, 990-EZ, or 990-PF) and its instructions is at www.irs.gov/form990.

OMB No. 1545-0047

2013

Name of the organization

ASPEN CENTER FOR PHYSICS

Employer identification number

84-6059504

Organization type (check one):

Filers of:

Section:

Form 990 or 990-EZ

501(c)( ) (enter number) organization

4947(a)(1) nonexempt charitable trust not treated as a private foundation

527 political organization

Form 990-PF

501(c)(3) exempt private foundation

4947(a)(1) nonexempt charitable trust treated as a private foundation

501(c)(3) taxable private foundation

Check if your organization is covered by the General Rule or a Special Rule.
Note. Only a section 501(c)(7), (8), or (10) organization can check boxes for both the General Rule and a Special Rule. See instructions.

General Rule

For an organization filing Form 990, 990-EZ, or 990-PF that received, during the year, $5,000 or more (in money or
property) from any one contributor. Complete Parts I and II.

Special Rules

For a section 501(c)(3) organization filing Form 990 or 990-EZ that met the 33¹/3% support test of the regulations
under sections 509(a)(1) and 170(b)(1)(A)(vi) and received from any one contributor, during the year, a contribution of the
greater of (1) $5,000 or (2) 2% of the amount on (i) Form 990, Part VIII, line 1h, or (ii) Form 990-EZ, line 1. Complete Parts I and II.

For a section 501(c)(7), (8), or (10) organization filing Form 990 or 990-EZ that received from any one contributor,
during the year, total contributions of more than $1,000 for use exclusively for religious, charitable,
scientific, literary, or educational purposes, or for the prevention of cruelty to children or animals. Complete Parts I, II, and
III.

For a section 501(c)(7), (8), or (10) organization filing Form 990 or 990-EZ that received from any one contributor,
during the year, contributions for use exclusively for religious, charitable, etc., purposes, but these contributions did
not total more than $1,000. If this box is checked, enter here the total contributions that were received during
the year for an exclusively religious, charitable, etc., purpose. Do not complete any of the parts unless the General Rule
applies to this organization because it received nonexclusively religious, charitable, etc., contributions of $5,000 or more
during the year ......................... Arrow Bullet

Caution. An organization that is not covered by the General Rule and/or the Special Rules does not file Schedule B (Form 990,
990-EZ, or 990-PF), but it must answer “No” on Part IV, line 2, of its Form 990; or check the box on line H of its
Form 990-EZ or on its Form 990PF, Part I, line 2, to certify that it does not meet the filing requirements of Schedule B (Form 990,
990-EZ, or 990-PF).

For Paperwork Reduction Act Notice, see the Instructions
for Form 990, 990-EZ, or 990-PF.

Cat. No. 30613XSchedule B (Form 990, 990-EZ, or 990-PF) (2013)

Schedule B (Form 990, 990-EZ, or 990-PF) (2013)

Page 2

Name of organization ASPEN CENTER FOR PHYSICS

Part I	Contributors (see instructions). Use duplicate copies of Part I if additional space is needed.
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
RESTRICTED	RESTRICTED RESTRICTED RESTRICTED RESTRICTED, RESTRICTEDRESTRICTED	$RESTRICTED	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
(a) No.	(b) Name, address, and ZIP + 4	(c) Total contributions	(d) Type of contribution
		$	Person Payroll Noncash (Complete Part II for noncash contributions.)
Schedule B (Form 990, 990-EZ, or 990-PF) (2013)

Schedule B (Form 990, 990-EZ, or 990-PF) (2013)

Page 3

Name of organization ASPEN CENTER FOR PHYSICS

Part II	Noncash Property (see instructions). Use duplicate copies of Part II if additional space is needed.
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (see instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (see instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (see instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (see instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (see instructions)	(d) Date received
		$
(a) No. from Part I	(b) Description of noncash property given	(c) FMV (or estimate) (see instructions)	(d) Date received
		$
Schedule B (Form 990, 990-EZ, or 990-PF) (2013)

Schedule B (Form 990, 990-EZ, or 990-PF) (2013)

Page 4

Name of organization
ASPEN CENTER FOR PHYSICS

Employer identification number

84-6059504

Part III

Exclusively religious, charitable, etc., individual contributions to section 501(c)(7), (8), or (10) organizations
that total more than $1,000 for the year. Complete columns (a) through (e) and the following line entry.
For organizations completing Part III, enter the total of exclusively religious, charitable, etc.,
contributions of $1,000 or less for the year. (Enter this information once. See instructions.) Arrow Bullet

$
Use duplicate copies of Part III if additional space is needed.

(a) No.
from
Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

(a) No.
from
Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

(a) No.
from
Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

(a) No.
from
Part I

(b) Purpose of gift

(d) Description of how gift is held

(e) Transfer of gift
Transferee's name, address, and ZIP 4	Relationship of transferor to transferee

Schedule B (Form 990, 990-EZ, or 990-PF) (2013)

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE D
(Form 990)

Department of the Treasury
Internal Revenue Service

Supplemental Financial Statements

Complete if the organization answered "Yes," to Form 990,
Part IV, line 6, 7, 8, 9, 10, 11a, 11b, 11c, 11d, 11e, 11f, 12a, or 12b
SchDMd Bullet

Attach to Form 990. SchDMd Bullet

See separate instructions. SchDMd Bullet

Information about Schedule D (Form 990) and its instructions is at www.irs.gov/form990.

OMB No. 1545-0047

2013

Open to Public Inspection

Name of the organization

ASPEN CENTER FOR PHYSICS

Employer identification number

84-6059504

Part I

Organizations Maintaining Donor Advised Funds or Other Similar Funds or Accounts. Complete if the organization answered "Yes" to Form 990, Part IV, line 6.

		(a) Donor advised funds	(b) Funds and other accounts
1	Total number at end of year .........
2	Aggregate contributions to (during year) ...
3	Aggregate grants from (during year) .....
4	Aggregate value at end of year ........

Did the organization inform all donors and donor advisors in writing that the assets held in donor advised
funds are the organization's property, subject to the organization's exclusive legal control? ............

Yes No

Did the organization inform all grantees, donors, and donor advisors in writing that grant funds can be
used only for charitable purposes and not for the benefit of the donor or donor advisor, or for any other purpose conferring impermissible private benefit? ...................................

Yes No

Part II

Conservation Easements. Complete if the organization answered "Yes" to Form 990, Part IV, line 7.

Purpose(s) of conservation easements held by the organization (check all that apply).

Preservation of land for public use (e.g., recreation or education) Preservation of an historically important land area

Protection of natural habitat Preservation of a certified historic structure

Preservation of open space

Complete lines 2a through 2d if the organization held a qualified conservation contribution in the form of a conservation easement on the last day of the tax year.


a	Total number of conservation easements .......................	2a
b	Total acreage restricted by conservation easements ..................	2b
c	Number of conservation easements on a certified historic structure included in (a) .....	2c
d	Number of conservation easements included in (c) acquired after 8/17/06, and not on a historic structure listed in the National Register ....................	2d

Number of conservation easements modified, transferred, released, extinguished, or terminated by the organization during
the tax year SchDMd Bullet

Number of states where property subject to conservation easement is located SchDMd Bullet

Does the organization have a written policy regarding the periodic monitoring, inspection, handling of violations, and
enforcement of the conservation easements it holds? .............................

Yes No

Staff and volunteer hours devoted to monitoring, inspecting, and enforcing conservation easements during the year
SchDMd Bullet

Amount of expenses incurred in monitoring, inspecting, and enforcing conservation easements during the year
SchDMd Bullet

Does each conservation easement reported on line 2(d) above satisfy the requirements of section 170(h)(4)(B)(i) and section 170(h)(4)(B)(ii)? .......................................

Yes No

In Part XIII, describe how the organization reports conservation easements in its revenue and expense statement, and
balance sheet, and include, if applicable, the text of the footnote to the organization’s financial statements that describes
the organization’s accounting for conservation easements.

Part III

Organizations Maintaining Collections of Art, Historical Treasures, or Other Similar Assets.
Complete if the organization answered "Yes" to Form 990, Part IV, line 8.

If the organization elected, as permitted under SFAS 116 (ASC 958), not to report in its revenue statement and balance sheet works of art, historical treasures, or other similar assets held for public exhibition, education, or research in furtherance of public service, provide, in Part XIII, the text of the footnote to its financial statements that describes these items.

If the organization elected, as permitted under SFAS 116 (ASC 958), to report in its revenue statement and balance sheet works of art, historical treasures, or other similar assets held for public exhibition, education, or research in furtherance of public service, provide the following amounts relating to these items:

(i)

Revenues included in Form 990, Part VIII, line 1 ........................ SchDMd Bullet

(ii)

Assets included in Form 990, Part X .............................. SchDMd Bullet

If the organization received or held works of art, historical treasures, or other similar assets for financial gain, provide the
following amounts required to be reported under SFAS 116 (ASC 958) relating to these items:

Revenues included in Form 990, Part VIII, line 1 .......................... SchDMd Bullet

Assets included in Form 990, Part X ............................... SchDMd Bullet

For Paperwork Reduction Act Notice, see the Instructions for Form 990.

Cat. No. 52283D

Schedule D (Form 990) 2013

Page 2

Part III

Organizations Maintaining Collections of Art, Historical Treasures, or Other Similar Assets (continued)

Using the organization’s acquisition, accession, and other records, check any of the following that are a significant use of its collection items (check all that apply):

Public exhibition

Loan or exchange programs

Scholarly research

Other

Preservation for future generations

Provide a description of the organization’s collections and explain how they further the organization’s exempt purpose in
Part XIII.

During the year, did the organization solicit or receive donations of art, historical treasures or other similar
assets to be sold to raise funds rather than to be maintained as part of the organization’s collection?........

Yes No

Part IV

Escrow and Custodial Arrangements. Complete if the organization answered "Yes" to Form 990,
Part IV, line 9, or reported an amount on Form 990, Part X, line 21.

Is the organization an agent, trustee, custodian or other intermediary for contributions or other assets not
included on Form 990, Part X? ....................................

Yes No

If "Yes," explain the arrangement in Part XIII and complete the following table:


c	Beginning balance .................................	1c
d	Additions during the year ..............................	1d
e	Distributions during the year .............................	1e
f	Ending balance ...................................	1f

Did the organization include an amount on Form 990, Part X, line 21? .....................

Yes No

If "Yes," explain the arrangement in Part XIII. Check here if the explanation has been provided in Part XIII ........

Part V

Endowment Funds. Complete if the organization answered "Yes" to Form 990, Part IV, line 10.

		(a)Current year	(b)Prior year	b (c)Two years back	(d)Three years back	(e)Four years back
1a	Beginning of year balance ....	1,801,820	1,707,367	1,634,841	1,293,816	1,046,334
b	Contributions ........	877,682	147,737	128,974	330,028	71,693
c	Net investment earnings, gains, and losses	244,886	128,735	49,171	82,731	243,832
d	Grants or scholarships .....	-10,625	-7,720	-40,500	-30,665
e	Other expenditures for facilities and programs ........	-476,222	-174,299	-65,119	-41,069	-68,043
f	Administrative expenses ....
g	End of year balance ......	2,437,541	1,801,820	1,707,367	1,634,841	1,293,816

Provide the estimated percentage of the current year end balance (line 1g, column (a)) held as:

Board designated or quasi-endowment SchDMd Bullet

79.900 %

Permanent endowment SchDMd Bullet

Temporarily restricted endowment SchDMd Bullet

20.100 %

The percentages in lines 2a, 2b, and 2c should equal 100%.

Are there endowment funds not in the possession of the organization that are held and administered for the
organization by:

Yes

(i) unrelated organizations ........................

3a(i)

(ii) related organizations ........................

3a(ii)

If "Yes" to 3a(ii), are the related organizations listed as required on Schedule R? .........

Describe in Part XIII the intended uses of the organization's endowment funds.

Part VI

Land, Buildings, and Equipment. Complete if the organization answered 'Yes' to Form 990, Part IV, line 11a. See Form 990, Part X, line 10.

Description of property		(b)Cost or other basis (other)	(c) Accumulated depreciation	(d) Book value
1a	Land .................	20		20
b	Buildings ................	3,302,253	2,112,188	1,190,065
c	Leasehold improvements ............
d	Equipment ................	230,474	219,022	11,452
e	Other .................	1,859,413	1,754,550	104,863
Total. Add lines 1a through 1e. (Column (d) must equal Form 990, Part X, column (B), line 10(c).).......				1,306,400

Schedule D (Form 990) 2013

Page 3

Part VII

InvestmentsOther Securities. Complete if the organization answered 'Yes' to Form 990, Part IV, line 11b. See Form 990, Part X, line 12.

(a) Description of security or category (including name of security)		(b)Book value	(c) Method of valuation: Cost or end-of-year market value
(1)Financial derivatives
(2)Closely-held equity interests
Other








Total. (Column (b) must equal Form 990, Part X, col. (B) line 12.)

Part VIII

InvestmentsProgram Related. Complete if the organization answered 'Yes' to Form 990, Part IV, line 11c. See Form 990, Part X, line 13.

(a) Description of investment		(b) Book value	(c) Method of valuation: Cost or end-of-year market value









Total. (Column (b) must equal Form 990, Part X, col.(B) line 13.)

Part IX

Other Assets. Complete if the organization answered 'Yes' to Form 990, Part IV, line 11d. See Form 990, Part X, line 15.

(a) Description				(b) Book value









Total. (Column (b) must equal Form 990, Part X, col.(B) line 15.)...........

Part X

Other Liabilities. Complete if the organization answered 'Yes' to Form 990, Part IV, line 11e or 11f. See Form 990, Part X, line 25.

1.(a) Description of liability		(b) Book value
Federal income taxes









Total. (Column (b) must equal Form 990, Part X, col.(B) line 25.)
2. Liability for uncertain tax positions In Part XIII, provide the text of the footnote to the organization's financial statements that reports the organization's liability for uncertain tax positions under FIN 48 (ASC 740). Check here if the text of the footnote has been provided in Part XIII ..................................................

Schedule D (Form 990) 2013

Page 4

Part XI Reconciliation of Revenue per Audited Financial Statements With Revenue per Return Complete if the organization answered 'Yes' to Form 990, Part IV, line 12a.
1	Total revenue, gains, and other support per audited financial statements .......			1	2,171,528
2	Amounts included on line 1 but not on Form 990, Part VIII, line 12:
a	Net unrealized gains on investments ..........	2a	-142,991
b	Donated services and use of facilities .........	2b
c	Recoveries of prior year grants ...........	2c
d	Other (Describe in Part XIII.) ............	2d
e	Add lines 2a through 2d .....................			2e	-142,991
3	Subtract line 2e from line 1.....................			3	2,314,519
4	Amounts included on Form 990, Part VIII, line 12, but not on line 1:
a	Investment expenses not included on Form 990, Part VIII, line 7b .	4a
b	Other (Describe in Part XIII.) ...........	4b
c	Add lines 4a and 4b.......................			4c
5	Total revenue. Add lines 3 and 4c. (This must equal Form 990, Part I, line 12.) ......			5	2,314,519

Part XII Reconciliation of Expenses per Audited Financial Statements With Expenses per Return. Complete if the organization answered 'Yes' to Form 990, Part IV, line 12a.
1	Total expenses and losses per audited financial statements ...........		1	1,567,890
2	Amounts included on line 1 but not on Form 990, Part IX, line 25:
a	Donated services and use of facilities ..........	2a
b	Prior year adjustments ..............	2b
c	Other losses ................	2c
d	Other (Describe in Part XIII.) ............	2d
e	Add lines 2a through 2d......................		2e
3	Subtract line 2e from line 1.....................		3	1,567,890
4	Amounts included on Form 990, Part IX, line 25, but not on line 1:
a	Investment expenses not included on Form 990, Part VIII, line 7b ..	4a
b	Other (Describe in Part XIII.) ............	4b
c	Add lines 4a and 4b.......................		4c
5	Total expenses. Add lines 3 and 4c. (This must equal Form 990, Part I, line 18.) ......		5	1,567,890

Part XIII

Supplemental Information

Provide the descriptions required for Part II, lines 3, 5, and 9; Part III, lines 1a and 4; Part lV, lines 1b and 2b;
Part V, line 4; Part X, line 2; Part XI, lines 2d and 4b; and Part XII, lines 2d and 4b. Also complete this part to provide any additional information.

Return Reference	Explanation
SCHEDULE D, PAGE 2, PART V, LINE 4	BOARD-DESIGNATED ENDOWMENT IS TO BE USED FOR CONTINGENCIES. TEMPORARILY RESTRICTED AMOUNTS ARE SPENT IN ACCORDANCE WITH DONORS' DESIGNATIONS.
SCHEDULE D, PAGE 3, PART X	THE CENTER IS EXEMPT FROM FEDERAL AND STATE INCOME TAXES UNDER THE PROVISIONS OF INTERNAL REVENUE CODE SECTION 501(C)(3). ACCORDINGLY, NO PROVISION OR LIABILITY FOR INCOME TAXES HAS BEEN PROVIDED IN THE ACCOMPANYING FINANCIAL STATEMENTS. THE CENTER'S FEDERAL RETURN OF ORGANIZATION EXEMPT FROM INCOME TAX (FORM 990) IS SUBJECT TO EXAMINATION BY THE IRS, GENERALLY FOR THREE YEARS.

Schedule D (Form 990) 2013

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE F(Form 990)

Department of the Treasury
Internal Revenue Service

Statement of Activities Outside the United States

Complete if the organization answered "Yes" to Form 990,Part IV, line 14b, 15, or 16. Right pointing arrow large image

Attach to Form 990. Right pointing arrow large image

See separate instructions. Right pointing arrow large image

Information about Schedule F (Form 990) and its instructions is at www.irs.gov/form990.

OMB No. 1545-0047

2013

Open to Public Inspection

Name of the organization
ASPEN CENTER FOR PHYSICS

Employer identification number

84-6059504

Part I

General Information on Activities Outside the United States. Complete if the organization answered "Yes" to Form 990, Part IV, line 14b.

For grantmakers.Does the organization maintain records to substantiate the amount of its grants and

other assistance, the grantees’ eligibility for the grants or assistance, and the selection criteria used

to award the grants or assistance? ...............................

Yes

For grantmakers. Describe in Part V the organization’s procedures for monitoring the use of its grants and other assistance outside the United States.

Activites per Region. (The following Part I, line 3 table can be duplicated if additional space is needed.)

(a) Region		(d) Activities conducted in region (by type) (e.g., fundraising, program services, investments, grants to recipients located in the region)	(e) If activity listed in (d) is a program service, describe specific type of service(s) in region	(f) Total expenditures for and investments in region
	EAST ASIA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	6,600
	EUROPA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	9,900
	MIDDLE EAST	PROGRAM SERVICES	TRAVEL SUPPORT TO US	3,850
	NORTH AMERICA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	1,130
	SOUTH AMERICA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	1,650
	SOUTH ASIA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	550











3a	Sub-total .....			23,680
b	Total from continuation sheets to Part I ...
c	Totals (add lines 3a and 3b)			23,680

For Paperwork Reduction Act Notice, see the Instructions for Form 990.Cat. No. 50082W Schedule F (Form 990) 2013

Schedule F (Form 990) 2013

Page 2

Part II

Grants and Other Assistance to Organizations or Entities Outside the United States. Complete if the organization answered "Yes" to Form 990, Part IV, line 15, for any recipient who received more than $5,000. Part II can be duplicated if additional space is needed.

1 (a) Name of organization		(b) IRS code section and EIN (if applicable)	(c) Region	(d) Purpose of grant	(e) Amount of cash grant	(f) Manner of cash disbursement	(g) Amount of non-cash assistance	(h) Description of non-cash assistance	(i) Method of valuation (book, FMV, appraisal, other)

Enter total number of recipient organizations listed above that are recognized as charities by the foreign country, recognized as tax-exempt by the IRS, or for which the grantee or counsel has provided a section 501(c)(3) equivalency letter .... MediumBullet

Enter total number of other organizations or entities ....................... MediumBullet

Schedule F (Form 990) 2013

Schedule F (Form 990) 2013Page 3

Part III

Grants and Other Assistance to Individuals Outside the United States. Complete if the organization answered "Yes" to Form 990, Part IV, line 16.

Part III can be duplicated if additional space is needed.

	(b) Region	(c) Number of recipients	(d) Amount of cash grant	(e) Manner of cash disbursement
HSG, REGISTRATION, TRAVEL	EAST ASIA	14	12,450	SEE PART V.
HSG, REGISTRATION, TRAVEL	EUROPE	39	32,610	SEE PART V.
HSG, REGISTRATION, TRAVEL	MIDDLE EAST	12	9,800	SEE PART V.
HSG, REGISTRATION, TRAVEL	NORTH AMERICA	9	8,100	SEE PART V.
HSG, REGISTRATION, TRAVEL	SOUTH AMERICA	4	3,300	SEE PART V.
HSG, REGISTRATION, TRAVEL	SOUTH ASIA	1	950	SEE PART V.

Schedule F (Form 990) 2013

Page 4

Part IV

Foreign Forms

Schedule F (Form 990) 2013

Page 5

Part V

Supplemental Information
Provide the information required by Part I, line 2 (monitoring of funds); Part I, line 3, column (f) (accounting method; amounts of investments vs. expenditures per region); Part II, line 1 (accounting method); Part III (accounting method); and Part III, column (c) (estimated number of recipients), as applicable. Also complete this part to provide any additional information (see instructions).

ReturnReference	Explanation
SCHEDULE F, PAGE 1, PART I, LINE 3	EAST ASIA 6,600 0 EUROPA 9,900 0 MIDDLE EAST 3,850 0 NORTH AMERICA 1,130 0 SOUTH AMERICA 1,650 0 SOUTH ASIA 550 0
SCHEDULE F, PAGE 5, PART V	PART I, LINE 2. ASPEN CENTER FOR PHYSICS AWARDS TRAVEL SUPPORT TO QUALIFIED PHYSICISTS FROM COUNTRIES WITH LIMITED SCIENTIFIC FUNDING, PREFERABLY FROM THE DEVELOPING WORLD. FUNDING IS PROVIDED BY A SIMONS FOUNDATION GRANT FOR THESE UNDERFUNDED SCIENTISTS. PHYSICISTS MUST PROVIDE RECEIPTS FOR TRAVEL, AN EXPLANATION OF THEIR FULL TRIP PLANS, AND BOARDING PASSES FOR THEIR TRAVEL SEGMENTS TO THE U. S. ONCE THESE DOCUMENTS HAVE BEEN REVIEWED IN THE ASPEN, COLORADO OFFICE, CHECKS ARE ISSUED IN THE U. S. TO THE INDIVIDUAL OR TO THE INDIVIDUAL'S INSTITUTION TO REIMBURSE THE PHYSICIST FOR ACP'S PORTION OF TRAVEL. PART I, COLUMN (F). CASH BASIS, PAID UPON RECEIPT OF TRAVEL DOCUMENTATION. PART III, COLUMN (E). MOST ASSISTANCE PROVIDED BY ASPEN CENTER FOR PHYSICS IS APPLIED TOWARD THE PHYSICIST'S OUTSTANDING BILL AT THE CENTER. MOST PARTICIPANTS PAY AN ADDITIONAL BALANCE DUE TO THE CENTER SINCE ASSISTANCE AMOUNTS LISTED HERE AVERAGE 850, WHICH IS THE MINIMUM COST FOR ATTENDING A CENTER PROGRAM. OCCASIONALLY THE AWARDEE WILL RECEIVE A CASH REIMBURSEMENT, IN THE FORM OF A CHECK DRAWN ON THE CENTER'S BANK, AFTER THE AWARDEE PROVIDES RECEIPTS AND DOCUMENTATION PROVING THAT THE REIMBURSEMENT IS FOR HOUSING OR TRAVEL EXPENSES REQUIRED FOR WINTER OR SUMMER ATTENDANCE AT ASPEN CENTER FOR PHYSICS.

Schedule F (Form 990) 2013

Additional Data

Software ID:
Software Version:

- TIN:

Schedule I
(Form 990)

Department of the Treasury
Internal Revenue Service

Grants and Other Assistance to Organizations,
Governments and Individuals in the United States

Complete if the organization answered "Yes," to Form 990, Part IV, line 21 or 22.
lBullet

Attach to Form 990
lBullet

Information about Schedule I (Form 990) and its instructions is at www.irs.gov/form990.

OMB No. 1545-0047

2013

Open to Public
Inspection

Name of the organization
ASPEN CENTER FOR PHYSICS

Employer identification number
84-6059504

Part I

General Information on Grants and Assistance

Does the organization maintain records to substantiate the amount of the grants or assistance, the grantees' eligibility for the grants or assistance, and
the selection criteria used to award the grants or assistance? ....................................

Yes No

Describe in Part IV the organization's procedures for monitoring the use of grant funds in the United States.

Part II

Grants and Other Assistance to Governments and Organizations in the United States. Complete if the organization answered "Yes" to
Form 990, Part IV, line 21, for any recipient that received more than $5,000. Part II can be duplicated if additional space is needed.

(a) Name and address of organization or government	(b) EIN	(c) IRC Code section if applicable	(d) Amount of cash grant	(e) Amount of non-cash assistance	(f) Method of valuation (book, FMV, appraisal, other)	(g) Description of non-cash assistance	(h) Purpose of grant or assistance

Enter total number of section 501(c)(3) and government organizations listed in the line 1 table ................ Bullet Image

Enter total number of other organizations listed in the line 1 table ........................ . Bullet Image

For Paperwork Reduction Act Notice, see the Instructions for Form 990.

Cat. No. 50055P

Schedule I (Form 990) 2013

Page 2

Part III

Grants and Other Assistance to Individuals in the United States. Complete if the organization answered "Yes" to Form 990, Part IV, line 22.
Part III can be duplicated if additional space is needed.

(a)Type of grant or assistance	(b)Number of recipients	(c)Amount of cash grant
(1) HOUSING SUPPORT	96	66,277
(2) TRAVEL SUPPORT	1	508
(3) GIFTS AND GRANTS	18	4,128

Part IV

Supplemental Information. Provide the information required in Part I, line 2, Part III, column (b), and any other additional information.

Return Reference

Explanation

SCHEDULE I, PAGE 4, PART IV

ALL PARTICIPANTS IN ACP HOUSING WERE FUNDED BY 2 DIFFERENT SOURCES. THOSE SUPPORTED BY NSF RECEIVED 165 PER WEEK. THE 43 PHYSICISTS SUPPORTED BY THE SIMONS FOUNDATION RECEIVED 365 PER WEEK FOR HOUSING, PLUS REGISTRATION AND TRAVEL SUPPORT. PHYSICISTS' SUMMER BILLS ARE REDUCED BY THE AMOUNT OF SUPPORT; ACCOUNT OVERPAYMENTS ARE REFUNDED BY CHECK. WINTER SUPPORT IS NORMALLY AWARDED TO JUNIOR SCIENTISTS AND THOSE SCIENTISTS WITH A DEMONSTRATED NEED IN ORDER TO ATTEND. THIS SUPPORT IS USED TO REDUCE THE PHYSICIST'S WINTER BILL OR IS REFUNDED BY CHECK.

Schedule I (Form 990) 2013

Additional Data

Software ID:
Software Version:

- TIN:

Schedule L
(Form 990 or 990-EZ)

Department of the Treasury
Internal Revenue Service

Transactions with Interested Persons

Complete if the organization answered
"Yes" on Form 990, Part IV, lines 25a, 25b, 26, 27, 28a, 28b, or 28c,
or Form 990-EZ, Part V, line 38a or 40b.
MediumBullet

Attach to Form 990 or Form 990-EZ. MediumBullet

See separate instructions.
MediumBullet

Information about Schedule L (Form 990 or 990-EZ) and its instructions is at www.irs.gov/form990.

OMB No. 1545-0047

2013

Open to Public Inspection

Name of the organization

ASPEN CENTER FOR PHYSICS

Employer identification number

84-6059504

Part I

Excess Benefit Transactions (section 501(c)(3) and section 501(c)(4) organizations only).
Complete if the organization answered "Yes" on Form 990, Part IV, line 25a or 25b, or Form 990-EZ, Part V, line 40b.

1(a) Name of disqualified person	(c) Description of transaction	(d) Corrected?
1(a) Name of disqualified person	(c) Description of transaction	Yes	No

Enter the amount of tax incurred by organization managers or disqualified persons during the year under section 4958. ........................... Bullet Image

Enter the amount of tax, if any, on line 2, above, reimbursed by the organization ....... Bullet Image

Part II

Loans to and/or From Interested Persons.
Complete if the organization answered "Yes" on Form 990-EZ, Part V, line 38a, or Form 990, Part IV, line 26; or if the organization reported an amount on Form 990, Part X, line 5, 6, or 22

(a) Name of interested person	(b) Relationship with organization	(c) Purpose of loan	(d) Loan to or from the organization?		(e)Original principal amount	(f)Balance due	(g) In default?		(h) Approved by board or committee?		(i)Written agreement?
(a) Name of interested person	(b) Relationship with organization	(c) Purpose of loan	To	From	(e)Original principal amount	(f)Balance due	Yes	No	Yes	No	Yes	No






Total ...... $

Part III

Grants or Assistance Benefitting Interested Persons.
Complete if the organization answered "Yes" on Form 990, Part IV, line 27.

(a) Name of interested person	(b) Relationship between interested person and the organization	(c) Amount of assistance	(d) Type of assistance	(e) Purpose of assistance
(1) AUERBACH ASSA	GENERAL MEMBER	2,775	SIMONS FOUNDATION	5 WEEKS -HOUSING
(2) ABRAHAMS ELIHU	GENERAL MEMBER	850	MOORE I- WINTER	HOUSING
(3) CARENA MARCELA	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(4) CHUBUKOV ANDREY	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(5) COHEN ANDREW	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(6) CVETIC MIRRJAM	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(7) DODELSON SCOTT	ASST TREAS, GEN MBR	330	NSF - SUMMER	2 WEEKS - HOUSING
(8) DONIACH SEBASTIAN	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(9) FABBIANO GUISEPPINA	ASST SEC, GEN MBR	660	NSF - SUMMER	4 WEEKS - HOUSING
(10) FARHI EDWARD	GENERAL MEMBER	825	NSF - SUMMER	5 WEEKS - HOUSING
(11) FENG JONATHAN	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(12) FREEDMAN MICHAEL	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(13) GELMINI GRACIELA B	GENERAL MEMBER	825	NSF - SUMMER	5 WEEKS - HOUSING
(14) GLAZMAN LEONID	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(15) GOLDBART PAUL	GENERAL MEMBER	165	NSF- SUMMER	1 WEEK - HOUSING
(16) GROSBERG ALEXANDER Y	GENERAL MEMBER	825	NSF - SUMMER	5 WEEKS - HOUSING
(17) HABER HOWARD	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(18) HECKMAN TIMOTHY	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(19) HULET RANDALL GARDNER	GENERAL MEMBER	165	NSF - SUMMER	1 WEEK - HOUSING
(20) JONES BARBARA	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(21) KALOGERA VASSILIKI	GENERAL MEMBER	825	NSF - SUMMER	5 WEEKS - HOUSING
(22) KAMIONKOWSKI MARC	TRUSTEE, GEN.MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(23) KAUFFMANN GUINEVERE	GENERAL MEMER	660	NSF - SUMMER	4 WEEKS - HOUSING
(24) KOTLIAR GABRIEL	GENERAL MEMBER	500	MOORE II - WINTER	HOUSING
(25) KOTLIAT GABRIEL	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(26) KRAVTSOV ANDREY	GENERAL MEMBER	490	NSF - ASTRO - WINTER	HOUSING
(27) KUSENKO ALEXANDER	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(28) MARTIN CRYSTAL	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(29) MESHKOV SYDNEY	GENERAL MEMBER	660	NSF - SUMMER	4 WEEKS - HOUSING
(30) MILLIS ANDREW	TRUSTEE, GEN.MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(31) MOORE GREGORY	GENERAL MEMBER	495	NSF- SUMMER	3 WEEKS - HOUSING
(32) MOORE JOEL	ASST SEC, GEN MBR	495	NSF - SUMMER	3 WEEKS - HOUSING
(33) MORRISON DAVID R	GENERAL MEMBER	660	NSF - SUMMER	4 WEEKS - HOUSING
(34) MURRAY NORMAN	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(35) MURTHY GANPATHY	GENERAL MEMBER	660	NSF - SUMMER	4 WEEKS - HOUSING
(36) NAYAK CHETAN	GENERAL MEMBER	660	NSF- SUMMER	4 WEEKS - HOUSING
(37) NELSON PHIL	TRUSTEE, GEN MBR	330	NSF - SUMMER	2 WEEKS - HOUSING
(38) PEEBLES P JAMES E	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(39) RABE KARIN	PRESIDENT, GEN MBR	495	NSF - SUMMER	3 WEEKS - HOUSING
(40) RAMOND PIERRE	GENERAL MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(41) RASIO FRED	GENERAL MEMBER	825	NSF - SUMMER	5 WEEKS - HOUSING
(42) SAULS JAMES	GENERAL MEMBER	1,095	NSF - SUMMER, MOORE I - WINTER	3 WEEKS - HOUSING
(43) SCHMALIAN JOERG	TRUSTEE, GEN MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(44) SHENKER STEPHEN	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(45) SI QIMIAO	GENERAL MEMBER	830	NSF - SUMMER, MOORE II - WINTER	2 WEEKS - HOUSING
(46) SIGURDSSON STEINN	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(47) SIMMONS ELIZABETH H	TRUSTEE, GEN MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(48) STEIN DANIEL	GENERAL MEMBER	495	NSF- SUMMER	3 WEEKS - HOUSING
(49) STEVENS CHARLES	CHAIRMAN, GEN MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(50) TERNING JOHN	CORP SEC, GEN MEMBER	330	NSF - SUMMER	2 WEEKS - HOUSING
(51) TROYER MATTHIAS	GENERAL MEMBER	825	NSF - SUMMER	5 WEEKS - HOUSING
(52) TURNER MICHAEL S	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(53) WHEELER JCRAIG	GENERALMEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(54) WINGREEN NED	GENERAL MEMBER	495	NSF - SUMMER	3 WEEKS - HOUSING
(55) WYSE ROSEMARY	GENERAL MEMBER	660	NSF - SUMMER	4 WEEKS - HOUSING
(56) YU CLARE	GENERAL MEMBER	825	NSF - SUMMER	5 WEEKS - HOUSING
(57) ZUREK KATHRYN	GENERAL MEMBER	300	NSF - IHC	HOUSING

For Paperwork Reduction Act Notice, see the Instructions for Form 990 or 990-EZ.

Cat. No. 50056A

Schedule L (Form 990 or 990-EZ) 2013

Page 2

Part IV

Business Transactions Involving Interested Persons.
Complete if the organization answered "Yes" on Form 990, Part IV, line 28a, 28b, or 28c.

(a) Name of interested person	(c) Amount of transaction	(d) Description of transaction	(e) Sharing of organization's revenues?
(a) Name of interested person	(c) Amount of transaction	(d) Description of transaction	Yes	No

Part V

Supplemental Information
Provide additional information for responses to questions on Schedule L (see instructions).

Return Reference

Explanation

SCHEDULE L, PART III

FENG JONATHAN GENERAL MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING FREEDMAN, MICHAEL GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING GELMINI GRACIELA B. GENERAL MEMBER 825 NSF - SUMMER 5 WEEKS - HOUSING GLAZMAN, LEONID GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING GOLDBART, PAUL GENERAL MEMBER 165 NSF- SUMMER 1 WEEK - HOUSING GROSBERG ALEXANDER Y. GENERAL MEMBER 825 NSF - SUMMER 5 WEEKS - HOUSING HABER HOWARD GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING HECKMAN TIMOTHY GENERAL MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING HULET RANDALL GARDNER GENERAL MEMBER 165 NSF - SUMMER 1 WEEK - HOUSING JONES BARBARA GENERAL MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING KALOGERA VASSILIKI GENERAL MEMBER 825 NSF - SUMMER 5 WEEKS - HOUSING KAMIONKOWSKI MARC TRUSTEE, GEN.MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING KAUFFMANN, GUINEVERE GENERAL MEMER 660 NSF - SUMMER 4 WEEKS - HOUSING KOTLIAR GABRIEL GENERAL MEMBER 500 MOORE II - WINTER HOUSING KOTLIAT GABRIEL GENERAL MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING KRAVTSOV ANDREY GENERAL MEMBER 490 NSF - ASTRO - WINTER HOUSING KUSENKO, ALEXANDER GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING MARTIN CRYSTAL GENERAL MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING MESHKOV SYDNEY GENERAL MEMBER 660 NSF - SUMMER 4 WEEKS - HOUSING MILLIS ANDREW TRUSTEE, GEN.MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING MOORE GREGORY GENERAL MEMBER 495 NSF- SUMMER 3 WEEKS - HOUSING MOORE JOEL ASST SEC, GEN MBR 495 NSF - SUMMER 3 WEEKS - HOUSING MORRISON DAVID R GENERAL MEMBER 660 NSF - SUMMER 4 WEEKS - HOUSING MURRAY NORMAN GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING MURTHY, GANPATHY GENERAL MEMBER 660 NSF - SUMMER 4 WEEKS - HOUSING NAYAK, CHETAN GENERAL MEMBER 660 NSF- SUMMER 4 WEEKS - HOUSING NELSON PHIL TRUSTEE, GEN MBR 330 NSF - SUMMER 2 WEEKS - HOUSING PEEBLES P JAMES E GENERAL MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING RABE KARIN PRESIDENT, GEN MBR 495 NSF - SUMMER 3 WEEKS - HOUSING RAMOND PIERRE GENERAL MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING RASIO FRED GENERAL MEMBER 825 NSF - SUMMER 5 WEEKS - HOUSING SAULS JAMES GENERAL MEMBER 1,095 NSF - SUMMER, MOORE I - WINTER 3 WEEKS - HOUSING SCHMALIAN, JOERG TRUSTEE, GEN MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING SHENKER, STEPHEN GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING SI, QIMIAO GENERAL MEMBER 830 NSF - SUMMER, MOORE II - WINTER 2 WEEKS - HOUSING SIGURDSSON, STEINN GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING SIMMONS ELIZABETH H TRUSTEE, GEN MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING STEIN DANIEL GENERAL MEMBER 495 NSF- SUMMER 3 WEEKS - HOUSING STEVENS CHARLES CHAIRMAN, GEN MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING TERNING, JOHN CORP SEC, GEN MEMBER 330 NSF - SUMMER 2 WEEKS - HOUSING TROYER, MATTHIAS GENERAL MEMBER 825 NSF - SUMMER 5 WEEKS - HOUSING TURNER, MICHAEL S. GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING WHEELER J.CRAIG GENERALMEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING WINGREEN NED GENERAL MEMBER 495 NSF - SUMMER 3 WEEKS - HOUSING WYSE, ROSEMARY GENERAL MEMBER 660 NSF - SUMMER 4 WEEKS - HOUSING YU, CLARE GENERAL MEMBER 825 NSF - SUMMER 5 WEEKS - HOUSING ZUREK KATHRYN GENERAL MEMBER 300 NSF - IHC HOUSING

SCHEDULE L, PART V

HOUSING SUPPORT WAS PROVIDED TO THESE INDIVIDUALS AS PROGRAM PARTICIPANTS. ALL PARTICIPANTS UTILIZING ACP HOUSING ASSISTANCE WERE FUNDED STANDARD 165 PER WEEK FOR SUMMER 2013. THE PARTICIPANTS OF WINTER CONFERENCES RECEIVED VARYING AMOUNTS.

Schedule L (Form 990 or 990-EZ) 2013

Additional Data

Software ID:
Software Version:

- TIN:

SCHEDULE O
(Form 990 or 990-EZ)

Department of the Treasury
Internal Revenue Service

Supplemental Information to Form 990 or 990-EZ

Complete to provide information for responses to specific questions on
Form 990 or to provide any additional information.
MediumBullet

Attach to Form 990 or 990-EZ.
MediumBullet

Information about Schedule O (Form 990 or 990-EZ) and its instructions is at
www.irs.gov/form990.

OMB No. 1545-0047

2013

Open to Public
Inspection

Name of the organization

ASPEN CENTER FOR PHYSICS

Employer identification number

84-6059504

Return Reference	Explanation
FORM 990 - ORGANIZATION'S MISSION	ASPEN CENTER FOR PHYSICS IS A SCIENTIFIC ORGANIZATION WHICH PROMOTES ORGANIZED RESEARCH IN PHYSICS, ASTROPHYSICS, AND RELATED FIELDS THROUGH PROGRAMS OF INDIVIDUAL AND COLLABORATIVE RESEARCH, WORKSHOPS, AND CONFERENCES, AS WELL AS PROMOTES THE EDUCATION OF THE GENERAL PUBLIC THROUGH PUBLIC LECTURES AND OTHER ACTIVITIES.
FORM 990	(MISSION STATEMENT, CONT'D) WORKSHOPS, AND CONFERENCES, AS WELL AS PROMOTES THE EDUCATION OF THE GENERAL PUBLIC THROUGH PUBLIC LECTURES AND OTHER ACTIVITIES.
FORM 990, PAGE 1, PART I, LINE 6	76 BOARD MEMBERS PERFORM ALL OF THE SCIENTIFIC MANAGEMENT AND ADMINISTRATION OF THE CENTER. THEY ALSO MAKE DECISIONS ON THE NON- SCIENTIFIC MANAGEMENT OF THE CENTER. 21 LECTURERS, DIALOGUE SPEAKERS, AND SUMMER AND WINTER KIDS SPEAKERS DELIVER FREE-OF-CHARGE PUBLIC LECTURES TO LOCAL AND VISITING ASPEN AUDIENCES. 15 COLLOQUIUM SPEAKERS DELIVER TALKS ABOUT THEIR FIELDS FOR ALL PHYSICISTS IN RESIDENCE, PARTICULARLY FOR THOSE WHO WORK IN FIELDS OTHER THAN THE SPEAKER'S. 32 HIGH SCHOOL MENTORS MEET WITH ACP'S HIGH SCHOOL INTERNS TO ANSWER THE STUDENTS' QUESTIONS ABOUT COLLEGE AND CAREERS. 75 SUMMER AND WINTER ORGANIZERS PROPOSE WORKSHOP OR CONFERENCE TOPICS, THEN MANAGE THAT EVENT. 3 COMMUNITY VOLUNTEERS ASSIST WITH THE MAINTENANCE OF THE ACP CAMPUS. 30 RADIO SHOW VOLUNTEERS.
FORM 990, PAGE 2, PART III, LINE 4A	DESIGNED TO MAXIMIZE INFORMAL INTERACTIONS WITHIN EACH AREA AND CROSS- FERTILIZATION BETWEEN DIFFERENT AREAS. WHILE CONTINUING TO PROVIDE LEADERSHIP IN THE CENTRAL AREAS OF PHYSICS (PARTICLE PHYSICS, ASTROPHYSICS, AND CONDENSED MATTER PHYSICS), ASPEN CENTER FOR PHYSICS HAS BEEN OPEN TO NEW DIRECTIONS IN PHYSICS AS WELL AS TO SCIENCE AT THE INTERFACE BETWEEN PHYSICS AND OTHER DISCIPLINES (BIOLOGY, CHEMISTRY, ENGINEERING, MATERIAL SCIENCE, AND MATHEMATICS). IN ADDITION, 7 TO 8 ONE-WEEK WINTER CONFERENCES BRING TOGETHER 60 TO 100 RESEARCHERS IN AREAS OF CURRENT INTEREST IN PHYSICS AND INTER-DISCIPLINARY PHYSICS RESEARCH. THE CENTER PROVIDES OFFICE SPACE, OFFICE SUPPLIES, MEETING SPACE, LIBRARY FACILITIES, AND NETWORK ACCESS TO ITS PARTICIPANTS. SUPPORT IS PROVIDED TO ALL INDIVIDUALS DURING THE SUMMER SESSION FOR WHOM LODGING IS ARRANGED BY ACP. PHYSICISTS' SUMMER BILLS ARE REDUCED BY THE AMOUNT OF SUPPORT; OVERPAYMENTS ARE REFUNDED BY CHECK. WINTER SUPPORT IS USUALLY AWARDED TO JUNIOR SCIENTISTS AND THOSE WITH A DEMONSTRATED NEED IN ORDER TO ATTEND. THIS SUPPORT IS USED TO REDUCE THE PHYSICIST'S WINTER BILL OR IS REFUNDED BY CHECK. DURING THE FISCAL YEAR ENDED MARCH 31, 2014, THERE WERE 561 SUMMER PARTICIPANTS (SUMMER 2013) AND 486 WINTER PARTICIPANTS (IN JANUARY, FEBRUARY, AND MARCH 2014).
FORM 990, PAGE 2, PART III, LINE 4B	TOPICS OF INTEREST TO NON-SCIENTISTS. SUMMER 2013 ATTENDANCE WAS 498 AT 4 DIALOGUES. (3) SUMMER CHILDREN'S PICNICS. IN CONJUNCTION WITH THE ASPEN SCIENCE CENTER, THE ASPEN CENTER FOR PHYSICS HOSTS CHILDREN'S WEEKLY SUMMER PICNICS THAT INCLUDE A PRESENTATION BY A PARTICIPATING PHYSICIST. THIS AFFORDS CHILDREN THE CHANCE TO MEET WORKING PHYSICISTS, TO LEARN ABOUT THE PROFESSION AND TO LEARN SOME SCIENCE IN FUN AND ENTERTAINING WAYS. SUMMER 2013 ATTENDANCE AT 6 PICNICS WAS 535. (4) HIGH SCHOOL MENTOR PROGRAM. ACP HIRES RISING SENIOR PHYSICS STUDENTS FROM 5 VALLEY HIGH SCHOOLS TO WORK FOR A SUMMER WEEK AT THE CENTER TO SEE WHAT THEORETICAL PHYSICISTS DO AND TO CHAT WITH 2 OR 3 PHYSICISTS ABOUT COLLEGE, CAREERS, AND/OR SCIENCE. ABOUT 42 PHYSICISTS AND STUDENTS PARTICIPATED IN 2013. (5) HIGH SCHOOL MONTHLY RADIO SHOW--RADIO PHYSICS. VALLEY HIGH SCHOOL PHYSICS STUDENTS FROM 5 SCHOOLS INTERVIEW PHYSICISTS ON A MONTHLY RADIO SHOW. THIS INTRODUCES THE STUDENTS TO SCIENCE, PUBLIC SPEAKING, AND INFORMS THE LISTENING PUBLIC ABOUT CURRENT PHYSICS TOPICS. THERE WERE 34 STUDENT AND PHYSICIST PARTICIPANTS FOR THIS FISCAL YEAR. (6) PHYSICS CAFES. CO-HOSTED WITH ASPEN SCIENCE CENTER, BEFORE EACH PUBLIC LECTURE 2 OR 3 PHYSICISTS MEET WITH STUDENTS AND THE PUBLIC TO DISCUSS PHYSICS OR CAREERS IN SCIENCE, OR WHATEVER TOPICS THE PUBLIC MIGHT BRING UP. FROM JANUARY TO MARCH 2014, 602 PEOPLE ATTENDED 7 CAFES. (7) TELEVISION BROADCASTS. BEFORE MOST LECTURES AND SOME DIALOGUES, ACP CONDUCTS INTERVIEWS WITH ITS SPEAKERS. THESE AND THE TAPED LECTURES ARE AIRED SEVERAL TIMES DURING THE WINTER OR SUMMER SEASONS. IN ADDITION, ALL VIDEOS ARE AVAILABLE ON GRASSROOTS TV'S WEBSITE WITH LINKS FROM THE ACP WEBSITE. THERE ARE OVER 300 ACP SCIENTIFIC LECTURES AND INTERVIEWS AVAILABLE AT NO CHARGE ONLINE. (8) ASPEN CENTER FOR PHYSICS WEBSITE. IN AN ON-GOING PROJECT TO SHARE THE SCIENCE DONE AT THE CENTER, ACP HAS A SECTION OF ITS WEBSITE TITLED, "THE SCIENCE." THIS LISTS PUBLICATIONS GENERATED AT THE CENTER AND INCLUDES SLIDES FROM SCIENTIFIC COLLOQUIA ATTENDED BY SUMMER PARTICIPANTS, AS WELL AS OTHER SCIENTIFIC INFORMATION. TOTAL NUMBER OF PUBLIC PARTICIPANTS PHYSICALLY ATTENDING ACP OUTREACH FOR FISCAL YEAR 2014: 3,911 TOTAL NUMBER OF PUBLIC LISTENING TO RADIO BROADCASTS OR VIEWING VIDEOS ON TELEVISION OR ONLINE: UNKNOWN
FORM 990, PART VI	GENERAL MEMBERS-- THE GENERAL MEMBERS SHALL DETERMINE THE GENERAL POLICIES OF THE CENTER, INCLUDING ITS SCIENTIFIC PROGRAM AND ADMISSIONS POLICY. THEY SHALL NOMINATE AND ELECT THE TRUSTEES. GENERAL MEMBERS MUST APPROVE FINANCIAL COMMITMENTS GREATER THAN 250,000, THE SALE OF BUILDINGS OR PROPERTY, CHANGES IN THE MODE OF OPERATIONS OF THE CORPORATION THAT AFFECT ITS PROGRAM, AND CHANGES IN ITS OVERALL POLICIES OR PURPOSE. FINANCIAL COMMITMENTS INCLUDE: (A) SALE OR PURCHASE OF PROPERTY OR BUILDINGS; (B) ENCUMBRANCES ON PROPERTY OR BUILDINGS; (C) CONSTRUCTION CONTRACTS, LOANS FOR NEW CONSTRUCTION; (D) LONG-TERM LEASES; (E) COMMITMENTS WHICH WOULD MATERIALLY CHANGE THE PROGRAM OR OPERATIONS. FINANCIAL TRANSACTIONS WHICH ARE EXCLUDED FROM THIS PROVISION INCLUDE SHORT-TERM LEASES FOR PARTICIPANTS' HOUSING MADE BY THE ADMINISTRATIVE STAFF WITH THE APPROVAL OF THE PRESIDENT AND TREASURER AND ROUTINE, REVOCABLE TRANSFERS OF FUNDS BETWEEN ACCOUNTS. TRUSTEES AND OFFICERS-- THE AFFAIRS OF THE CORPORATION SHALL BE MANAGED BY ITS BOARD OF TRUSTEES WHO NEED NOT BE RESIDENTS OF THE STATE OF COLORADO. THE MANAGEMENT OF THE AFFAIRS OF THE CORPORATION SHALL BE WITHIN THE GENERAL GUIDELINES SET BY THE GENERAL MEMBERS AND SHALL BE CONSISTENT WITH THE BYLAWS AND ARTICLES OF INCORPORATION. CONVEYANCES OF ENCUMBRANCES OF THE PROPERTY OF THE CORPORATION SHALL BE AUTHORIZED BY THE BOARD OF TRUSTEES AND EXECUTED BY THOSE PERSONS DESIGNATED BY THE BOARD SUBJECT TO THE APPROVAL OF THE GENERAL MEMBERS WHEN SO REQUIRED BY THE BYLAWS.
FORM 990, PAGE 6, PART VI, LINE 11B	APPROXIMATELY A WEEK PRIOR TO FILING THE FORM 990, A DRAFT IN PDF FORMAT IS EMAILED TO OFFICERS AND TRUSTEES. COMMENTS AND CORRECTIONS ARE STRONGLY ENCOURAGED. IN ADDITION, THE ADMINISTRATIVE VICE PRESIDENT AND FINANCE MANAGER DISCUSS THE ENTIRE DRAFT FORM WITH THE PREPARER IN DETAIL IN ADVANCE OF FILING.
FORM 990, PAGE 6, PART VI, LINE 15A	THE BOARD OF TRUSTEES REVIEWS AND APPROVES THE ADMINISTRATIVE VICE PRESIDENT'S ANNUAL SALARY AND BENEFITS, WITH NO PARTICIPATION BY THE ADMINISTRATIVE VICE PRESIDENT OR OTHER INTERESTED PERSONS. THE SALARY AND BENEFITS ARE ESTABLISHED USING COMPARABLE DATA FOR SIMILARLY QUALIFIED PERSONS IN FUNCTIONALLY COMPARABLE POSITIONS AT SIMILAR NONPROFITS, CONSIDERATION OF ROLES AND RESPONSIBILITIES OF THE ADMINISTRATIVE VICE PRESIDENT, AND COST OF LIVING DATA. COMPARABLE MARKET DATA ARE OBTAINED FROM SALARY SURVEYS AND FORM 990S FILED BY COMPARABLE NOT -FOR-PROFIT ORGANIZATIONS. THE CENTER HAS A TRAVEL POLICY THAT CAPS REIMBURSEMENT LEVELS AND REQUIRES LOW-BUDGET TRAVEL.
FORM 990, PAGE 6, PART VI, LINE 15B	A LINE ITEM BUDGET IS APPROVED BY THE GENERAL MEMBERS ANNUALLY. THEY APPROVE THE OVERALL SALARIES AND BENEFITS EXPENSES. DISCUSSIONS AND DECISIONS REGARDING THE BUDGET ARE DOCUMENTED IN BOARD MEETING MINUTES. THE BOARD OF TRUSTEES REVIEW AND APPROVE THE SALARIES AND BENEFITS OF THE ADMINISTRATIVE VICE PRESIDENT AND THE FINANCIAL MANAGER, WITH NO PARTICIPATION BY THE INTERESTED PERSONS, IN ACCORDANCE WITH THE ANNUAL BUDGET. SALARIES AND BENEFITS ARE ESTABLISHED USING COMPARABLE DATA FOR SIMILARLY QUALIFIED PERSONS IN FUNCTIONALLY COMPARABLE POSITIONS AT SIMILAR NONPROFITS, CONSIDERATION OF ROLES AND RESPONSIBILITIES OF THE OFFICER OR KEY EMPLOYEE, AND COST OF LIVING DATA. COMPARABLE MARKET DATA ARE OBTAINED FROM SALARY SURVEYS AND FORM 990S FILED BY COMPARABLE NOT-FOR-PROFIT ORGANIZATIONS.
FORM 990, PAGE 6, PART VI, LINE 19	WE CONSIDER REQUESTS ON A CASE-BY-CASE BASIS.

For Paperwork Reduction Act Notice, see the Instructions for Form 990 or 990-EZ.

Cat. No. 51056K

Schedule O (Form 990 or 990-EZ) 2013

Additional Data

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1	Was the organization a U.S. transferor of property to a foreign corporation during the tax year? If "Yes,"the organization may be required to file Form 926, Return by a U.S. Transferor of Property to a Foreign Corporation (see Instructions for Form 926)......................................	Yes	No
2	Did the organization have an interest in a foreign trust during the tax year? If "Yes," the organization may be required to file Form 3520, Annual Return to Report Transactions with Foreign Trusts and Receipt of Certain Foreign Gifts, and/or Form 3520-A, Annual Information Return of Foreign Trust With a U.S. Owner (see Instructions for Forms 3520 and 3520-A).......................................	Yes	No
3	Did the organization have an ownership interest in a foreign corporation during the tax year? If "Yes," the organization may be required to file Form 5471, Information Return of U.S. Persons with Respect to Certain Foreign Corporations. (see Instructions for Form 5471)..............................	Yes	No
4	Was the organization a direct or indirect shareholder of a passive foreign investment company or a qualified electing fund during the tax year? If “Yes,” the organization may be required to file Form 8621, Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund. (see Instructions for Form 8621)...............................................	Yes	No
5	Did the organization have an ownership interest in a foreign partnership during the tax year? If "Yes," the organization may be required to file Form 8865, Return of U.S. Persons with Respect to Certain Foreign Partnerships. (see Instructions for Form 8865)....................................	Yes	No
6	Did the organization have any operations in or related to any boycotting countries during the tax year? If "Yes," the organization may be required to file Form 5713, International Boycott Report (see Instructions for Form 5713)................................................	Yes	No