TY 2019 Form 990

(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)	(E) Reportable compensation from related organizations (W-2/1099-MISC)
(1) GIUSEPPINA FABBIANO...................................................................... TRUSTEE	0.50 .................	X
(2) ALEXANDER GROSBERG...................................................................... TRUSTEE	0.50 .................	X
(3) VASSILIKI KALOGERA...................................................................... TRUSTEE	0.50 .................	X
(4) ZOLTAN LIGETI...................................................................... TRUSTEE	0.50 .................	X
(5) DAVID R MORRISON...................................................................... TRUSTEE	0.50 .................	X
(6) CHETAN NAYAK...................................................................... TRUSTEE	0.50 .................	X
(7) STEINN SIGURDSSON...................................................................... TRUSTEE	0.50 .................	X
(8) MATTHIAS TROYER...................................................................... VICE PRESIDE	1.00 .................	X	X
(9) KARIN RABE...................................................................... CHAIR	1.00 .................	X	X
(10) HIROSI OOGURI...................................................................... PRESIDENT	1.00 .................	X	X
(11) JOSHUA FRIEMAN...................................................................... PRESIDENT	1.00 .................	X	X
(12) CLARE YU...................................................................... CORPORATE SE	1.00 .................	X	X
(13) WASHINGTON TAYLOR...................................................................... TRUSTEE	0.50 .................	X
(14) FRED RASIO...................................................................... SCIENTIFIC S	1.00 .................	X	X
(15) SCOTT DODELSON...................................................................... TREASURER	1.00 .................	X	X
(16) JONATHAN FENG...................................................................... TREASURER	1.00 .................	X	X
(17) GIL REFAEL...................................................................... SCIENTIFIC S	1.00 .................	X	X

- 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.
right arrow

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

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2019

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 12, 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 (Form 990 or 990-EZ).)

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 agricultural research organization described in 170(b)(1)(A)(ix) operated in conjunction with a land-grant college or university or a non-land grant college of agriculture. See instructions. Enter the name, city, and state of the college or university:

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 in lines 12a through 12d that describes the type of supporting organization and complete lines 12e, 12f, and 12g.

Type I. A supporting organization operated, supervised, or controlled by its supported organization(s), typically by giving the supported organization(s) the power to regularly appoint or elect a majority of the directors or trustees of the supporting organization. You must complete Part IV, Sections A and B.

Type II. A supporting organization supervised or controlled in connection with its supported organization(s), by having control or management of the supporting organization vested in the same persons that control or manage the supported organization(s). You must complete Part IV, Sections A and C.

Type III functionally integrated. A supporting organization operated in connection with, and functionally integrated with, its supported organization(s) (see instructions). You must complete Part IV, Sections A, D, and E.

Type III non-functionally integrated. A supporting organization operated in connection with its supported organization(s) that is not functionally integrated. The organization generally must satisfy a distribution requirement and an attentiveness requirement (see instructions). You must complete Part IV, Sections A and D, and Part V.

Check this box if the organization received a written determination from the IRS that it is a Type I, Type II, Type III functionally integrated, or Type III non-functionally integrated supporting organization.

Enter the number of supported organizations ...............................

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

(i) Name of supported organization	(ii) EIN	(iv) Is the organization listed in your governing document?		(v) Amount of monetary support (see instructions)	(vi) Amount of other support (see instructions)
(i) Name of supported organization	(ii) EIN	Yes	No	(v) Amount of monetary support (see instructions)	(vi) Amount of other support (see instructions)


Total

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

Cat. No. 11285F

Schedule A (Form 990 or 990-EZ) 2019

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 failed to qualify under the tests listed below, please complete Part III.)

Section A. Public Support

Calendar year (or fiscal year beginning in)		(a) 2015	(b) 2016	(c) 2017	(d) 2018	(e) 2019	(f) Total
1	Gifts, grants, contributions, and membership fees received. (Do not include any "unusual grant.") ..	562,895	703,392	1,487,551	717,866	806,511	4,278,215
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	562,895	703,392	1,487,551	717,866	806,511	4,278,215
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)..						1,011,827
6	Public support. Subtract line 5 from line 4.						3,266,388

Section B. Total Support

Calendar year (or fiscal year beginning in)		(a) 2015	(b) 2016	(c) 2017	(d) 2018	(e) 2019	(f) Total
7	Amounts from line 4..	562,895	703,392	1,487,551	717,866	806,511	4,278,215
8	Gross income from interest, dividends, payments received on securities loans, rents, royalties and income from similar sources...	83,561	111,348	113,319	126,072	195,453	629,753
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 VI.)..
11	Total support. Add lines 7 through 10						4,907,968

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

5,420,991

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

Section C. Computation of Public Support Percentage

Public support percentage for 2019 (line 6, column (f) divided by line 11, column (f)) .........

66.550 %

Public support percentage for 2018 Schedule A, Part II, line 14 ...............

68.280 %

16a

33 1/3% support test—2019. 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—2018. 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—2019. 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 VI how the organization meets the "facts-and-circumstances" test. The organization qualifies as a publicly supported
organization ..................................................... right arrow

10%-facts-and-circumstances test—2018. 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 VI 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) 2019

Page 3

Part III

Support Schedule for Organizations Described in Section 509(a)(2)
(Complete only if you checked the box on line 10 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) 2015	(b) 2016	(c) 2017	(d) 2018	(e) 2019	(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) 2015	(b) 2016	(c) 2017	(d) 2018	(e) 2019	(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 VI.) ..
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 section 501(c)(3) organization,
check this box and stop here............................................. right arrow

Section C. Computation of Public Support Percentage

Public support percentage for 2019 (line 8, column (f) divided by line 13, column (f)) .........

Public support percentage from 2018 Schedule A, Part III, line 15 ...............

Section D. Computation of Investment Income Percentage

Investment income percentage for 2019 (line 10c, column (f) divided by line 13, column (f)) ......

Investment income percentage from 2018 Schedule A, Part III, line 17 .............

19a

331/3% support tests—2019. 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—2018. 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) 2019

Page 4

Part IV

Supporting Organizations

(Complete only if you checked a box on line 12 of Part I. If you checked 12a of Part I, complete Sections A and B. If you checked 12b of Part I, complete Sections A and C. If you checked 12c of Part I, complete Sections A, D, and E. If you checked 12d of Part I, complete Sections A and D, and complete Part V.)

Section A. All Supporting Organizations

Yes

Are all of the organization’s supported organizations listed by name in the organization’s governing documents?
If "No," describe in Part VI how the supported organizations are designated. If designated by class or purpose,
describe the designation. If historic and continuing relationship, explain.

Did the organization have any supported organization that does not have an IRS determination of status under section 509(a)(1) or (2)? If "Yes," explain in Part VI how the organization determined that the supported organization was described in section 509(a)(1) or (2).

Did the organization have a supported organization described in section 501(c)(4), (5), or (6)? If "Yes," answer (b) and (c) below.

Did the organization confirm that each supported organization qualified under section 501(c)(4), (5), or (6) and satisfied the public support tests under section 509(a)(2)? If "Yes," describe in Part VI when and how the organization made the determination.

Did the organization ensure that all support to such organizations was used exclusively for section 170(c)(2)(B) purposes? If "Yes," explain in Part VI what controls the organization put in place to ensure such use.

Was any supported organization not organized in the United States ("foreign supported organization")? If “Yes” and if you checked 12a or 12b in Part I, answer (b) and (c) below.

Did the organization have ultimate control and discretion in deciding whether to make grants to the foreign supported organization? If “Yes,” describe in Part VI how the organization had such control and discretion despite being controlled or supervised by or in connection with its supported organizations.

Did the organization support any foreign supported organization that does not have an IRS determination under sections 501(c)(3) and 509(a)(1) or (2)? If “Yes,” explain in Part VI what controls the organization used to ensure that all support to the foreign supported organization was used exclusively for section 170(c)(2)(B) purposes.

Did the organization add, substitute, or remove any supported organizations during the tax year? If “Yes,” answer (b) and (c) below (if applicable). Also, provide detail in Part VI, including (i) the names and EIN numbers of the supported organizations added, substituted, or removed; (ii) the reasons for each such action; (iii) the authority under the organization's organizing document authorizing such action; and (iv) how the action was accomplished (such as by amendment to the organizing document).

Type I or Type II only. Was any added or substituted supported organization part of a class already designated in the organization's organizing document?

Substitutions only. Was the substitution the result of an event beyond the organization's control?

Did the organization provide support (whether in the form of grants or the provision of services or facilities) to anyone other than (i) its supported organizations, (ii) individuals that are part of the charitable class benefited by one or more of its supported organizations, or (iii) other supporting organizations that also support or benefit one or more of the filing organization’s supported organizations? If “Yes,” provide detail in Part VI.

Did the organization provide a grant, loan, compensation, or other similar payment to a substantial contributor (defined in section 4958(c)(3)(C)), a family member of a substantial contributor, or a 35% controlled entity with regard to a substantial contributor? If “Yes,” complete Part I of Schedule L (Form 990 or 990-EZ) .

Did the organization make a loan to a disqualified person (as defined in section 4958) not described in line 7? If “Yes,” complete Part I of Schedule L (Form 990 or 990-EZ).

Was the organization controlled directly or indirectly at any time during the tax year by one or more disqualified persons as defined in section 4946 (other than foundation managers and organizations described in section 509(a)(1) or (2))? If “Yes,” provide detail in Part VI.

Did one or more disqualified persons (as defined in line 9a) hold a controlling interest in any entity in which the supporting organization had an interest? If “Yes,” provide detail in Part VI.

Did a disqualified person (as defined in line 9a) have an ownership interest in, or derive any personal benefit from, assets in which the supporting organization also had an interest? If “Yes,” provide detail in Part VI.

10a

Was the organization subject to the excess business holdings rules of section 4943 because of section 4943(f) (regarding certain Type II supporting organizations, and all Type III non-functionally integrated supporting organizations)? If “Yes,” answer line 10b below.

10a

Did the organization have any excess business holdings in the tax year? (Use Schedule C, Form 4720, to determine whether the organization had excess business holdings).

10b

Schedule A (Form 990 or 990-EZ) 2019

Page 5

Part IV

Supporting Organizations (continued)

Yes

Has the organization accepted a gift or contribution from any of the following persons?

A person who directly or indirectly controls, either alone or together with persons described in (b) and (c) below, the governing body of a supported organization?

11a

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

11b

A 35% controlled entity of a person described in (a) or (b) above? If “Yes” to a, b, or c, provide detail in Part VI.

11c

Section B. Type I Supporting Organizations

Yes

Did the directors, trustees, or membership of one or more supported organizations have the power to regularly appoint or elect at least a majority of the organization’s directors or trustees at all times during the tax year? If “No,” describe in Part VI how the supported organization(s) effectively operated, supervised, or controlled the organization’s activities. If the organization had more than one supported organization, describe how the powers to appoint and/or remove directors or trustees were allocated among the supported organizations and what conditions or restrictions, if any, applied to such powers during the tax year.

Did the organization operate for the benefit of any supported organization other than the supported organization(s) that operated, supervised, or controlled the supporting organization? If “Yes,” explain in Part VI how providing such benefit carried out the purposes of the supported organization(s) that operated, supervised or controlled the supporting organization.

Section C. Type II Supporting Organizations

Yes

Were a majority of the organization’s directors or trustees during the tax year also a majority of the directors or trustees of each of the organization’s supported organization(s)? If “No,” describe in Part VI how control or management of the supporting organization was vested in the same persons that controlled or managed the supported organization(s).

Section D. All Type III Supporting Organizations

Yes

Did the organization provide to each of its supported organizations, by the last day of the fifth month of the organization’s tax year, (i) a written notice describing the type and amount of support provided during the prior tax year, (ii) a copy of the Form 990 that was most recently filed as of the date of notification, and (iii) copies of the organization’s governing documents in effect on the date of notification, to the extent not previously provided?

Were any of the organization’s officers, directors, or trustees either (i) appointed or elected by the supported organization(s) or (ii) serving on the governing body of a supported organization? If "No," explain in Part VI how the organization maintained a close and continuous working relationship with the supported organization(s).

By reason of the relationship described in (2), did the organization’s supported organizations have a significant voice in the organization’s investment policies and in directing the use of the organization’s income or assets at all times during the tax year? If "Yes," describe in Part VI the role the organization’s supported organizations played in this regard.

Section E. Type III Functionally-Integrated Supporting Organizations

Check the box next to the method that the organization used to satisfy the Integral Part Test during the year (see instructions):

The organization satisfied the Activities Test. Complete line 2 below.

The organization is the parent of each of its supported organizations. Complete line 3 below.

The organization supported a governmental entity. Describe in Part VI how you supported a government entity (see instructions)

Activities Test. Answer (a) and (b) below.

Yes

Did substantially all of the organization’s activities during the tax year directly further the exempt purposes of the supported organization(s) to which the organization was responsive? If "Yes," then in Part VI identify those supported organizations and explain how these activities directly furthered their exempt purposes, how the organization was responsive to those supported organizations, and how the organization determined that these activities constituted substantially all of its activities.

Did the activities described in (a) constitute activities that, but for the organization’s involvement, one or more of the organization’s supported organization(s) would have been engaged in? If "Yes," explain in Part VI the reasons for the organization’s position that its supported organization(s) would have engaged in these activities but for the organization’s involvement.

Parent of Supported Organizations. Answer (a) and (b) below.

Did the organization have the power to regularly appoint or elect a majority of the officers, directors, or trustees of each of the supported organizations? Provide details in Part VI.

Did the organization exercise a substantial degree of direction over the policies, programs and activities of each of its supported organizations? If "Yes," describe in Part VI. the role played by the organization in this regard.

Schedule A (Form 990 or 990-EZ) 2019

Page 6

Part V

Type III Non-Functionally Integrated 509(a)(3) Supporting Organizations

Check here if the organization satisfied the Integral Part Test as a qualifying trust on Nov. 20, 1970 (explain in Part VI). See instructions. All other Type III non-functionally integrated supporting organizations must complete Sections A through E.

	Section A - Adjusted Net Income		(A) Prior Year	(B) Current Year (optional)
1	Net short-term capital gain	1
2	Recoveries of prior-year distributions	2
3	Other gross income (see instructions)	3
4	Add lines 1 through 3	4
5	Depreciation and depletion	5
6	Portion of operating expenses paid or incurred for production or collection of gross income or for management, conservation, or maintenance of property held for production of income (see instructions)	6
7	Other expenses (see instructions)	7
8	Adjusted Net Income (subtract lines 5, 6 and 7 from line 4)	8

	Section B - Minimum Asset Amount		(A) Prior Year	(B) Current Year (optional)
1	Aggregate fair market value of all non-exempt-use assets (see instructions for short tax year or assets held for part of year):	1
a	Average monthly value of securities	1a
b	Average monthly cash balances	1b
c	Fair market value of other non-exempt-use assets	1c
d	Total (add lines 1a, 1b, and 1c)	1d
e	Discount claimed for blockage or other factors (explain in detail in Part VI):
2	Acquisition indebtedness applicable to non-exempt use assets	2
3	Subtract line 2 from line 1d	3
4	Cash deemed held for exempt use. Enter 1-1/2% of line 3 (for greater amount, see instructions).	4
5	Net value of non-exempt-use assets (subtract line 4 from line 3)	5
6	Multiply line 5 by .035	6
7	Recoveries of prior-year distributions	7
8	Minimum Asset Amount (add line 7 to line 6)	8

	Section C - Distributable Amount		Current Year
1	Adjusted net income for prior year (from Section A, line 8, Column A)	1
2	Enter 85% of line 1	2
3	Minimum asset amount for prior year (from Section B, line 8, Column A)	3
4	Enter greater of line 2 or line 3	4
5	Income tax imposed in prior year	5
6	Distributable Amount. Subtract line 5 from line 4, unless subject to emergency temporary reduction (see instructions)	6

Check here if the current year is the organization's first as a non-functionally-integrated Type III supporting organization (see instructions)

Schedule A (Form 990 or 990-EZ) 2019

Page 7

Part V

Type III Non-Functionally Integrated 509(a)(3) Supporting Organizations(continued)

Section D - Distributions		Current Year
1 Amounts paid to supported organizations to accomplish exempt purposes
2 Amounts paid to perform activity that directly furthers exempt purposes of supported organizations, in excess of income from activity
3 Administrative expenses paid to accomplish exempt purposes of supported organizations
4 Amounts paid to acquire exempt-use assets
5 Qualified set-aside amounts (prior IRS approval required)
6 Other distributions (describe in Part VI). See instructions
7Total annual distributions. Add lines 1 through 6.
8 Distributions to attentive supported organizations to which the organization is responsive (provide details in Part VI). See instructions
9 Distributable amount for 2019 from Section C, line 6
10 Line 8 amount divided by Line 9 amount

Section E - Distribution Allocations (see instructions)		(i) Excess Distributions	(ii) Underdistributions Pre-2019	(iii) Distributable Amount for 2019
1 Distributable amount for 2019 from Section C, line 6
2 Underdistributions, if any, for years prior to 2019 (reasonable cause required-- explain in Part VI). See instructions.
3 Excess distributions carryover, if any, to 2019:
a From 2014.......
b From 2015.......
c From 2016.......
d From 2017.......
e From 2018.......
fTotal of lines 3a through e
g Applied to underdistributions of prior years
h Applied to 2019 distributable amount
i Carryover from 2014 not applied (see instructions)
j Remainder. Subtract lines 3g, 3h, and 3i from 3f.
4Distributions for 2019 from Section D, line 7:
$
a Applied to underdistributions of prior years
b Applied to 2019 distributable amount
c Remainder. Subtract lines 4a and 4b from 4.
5 Remaining underdistributions for years prior to 2019, if any. Subtract lines 3g and 4a from line 2. If the amount is greater than zero, explain in Part VI. See instructions.
6 Remaining underdistributions for 2019. Subtract lines 3h and 4b from line 1. If the amount is greater than zero, explain in Part VI. See instructions.
7 Excess distributions carryover to 2020. Add lines 3j and 4c.
8 Breakdown of line 7:
a Excess from 2015.....
b Excess from 2016.....
c Excess from 2017.....
d Excess from 2018.....
e Excess from 2019.....

Schedule A (Form 990 or 990-EZ) (2019)

Schedule A (Form 990 or 990-EZ) 2019

Page 8

Part VI

Supplemental Information. Provide the explanations required by Part II, line 10; Part II, line 17a or 17b; Part III, line 12; Part IV, Section A, lines 1, 2, 3b, 3c, 4b, 4c, 5a, 6, 9a, 9b, 9c, 11a, 11b, and 11c; Part IV, Section B, lines 1 and 2; Part IV, Section C, line 1; Part IV, Section D, lines 2 and 3; Part IV, Section E, lines 1c, 2a, 2b, 3a and 3b; Part V, line 1; Part V, Section B, line 1e; Part V Section D, lines 5, 6, and 8; and Part V, Section E, lines 2, 5, and 6. Also complete this part for any additional information. (See instructions).

Facts And Circumstances Test

Return Reference	Explanation

Schedule A (Form 990 or 990-EZ) 2019

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.

Go to www.irs.gov/Form990 for the latest information.

OMB No. 1545-0047

2019

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, contributions totaling $5,000 or more (in money or other property) from any one contributor. Complete Parts I and II. See instructions for determining a contributor's total contributions.

Special Rules

For an organization described in section 501(c)(3) 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), that checked Schedule A (Form 990 or 990-EZ), Part II, line 13, 16a, or 16b, and that received from any one contributor, during the year, total contributions 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 an organization described in section 501(c)(7), (8), or (10) filing Form 990 or 990-EZ that received from any one contributor,
during the year, total contributions of more than $1,000 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 an organization described in section 501(c)(7), (8), or (10) filing Form 990 or 990-EZ that received from any one contributor,
during the year, contributions exclusively for religious, charitable, etc., purposes, but no such contributions totaled 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. Don't complete any of the parts unless the General Rule applies to this organization because it received nonexclusively religious, charitable, etc., contributions totaling $5,000 or more during the year ......... Arrow Bullet

Caution: An organization that isn't covered by the General Rule and/or the Special Rules doesn't 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 doesn't 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) (2019)

Schedule B (Form 990, 990-EZ, or 990-PF) (2019) Page 2

Name of organization ASPEN CENTER FOR PHYSICS

Part I Contributors	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	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) (2019)

Schedule B (Form 990, 990-EZ, or 990-PF) (2019)

Page 3

Name of organization ASPEN CENTER FOR PHYSICS		Employer identification number 84-6059504

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) (2019)

Schedule B (Form 990, 990-EZ, or 990-PF) (2019)

Page 4


Name of organization ASPEN CENTER FOR PHYSICS			Employer identification number 84-6059504
Part III Exclusively religious, charitable, etc., contributions to organizations described in section 501(c)(7), (8), or (10) that total more than $1,000 for the year from any one contributor. 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.) $ 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) (2019)

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," on 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

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2019

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" on Form 990, Part IV, line 6.

		(a) Donor advised funds	(b) Funds and other accounts
1	Total number at end of year .........
2	Aggregate value of contributions to (during year)
3	Aggregate value of 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" on 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 7/25/06, 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, handling of violations, and enforcing conservation easements during the year
SchDMd Bullet

Amount of expenses incurred in monitoring, inspecting, handling of violations, 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" on Form 990, Part IV, line 8.

If the organization elected, as permitted under FASB 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 FASB 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)

Revenue included on 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 FASB ASC 958 relating to these items:

Revenue included on 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) 2019

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" on 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


b	If "Yes," explain the arrangement in Part XIII and complete the following table:		Amount
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, for escrow or custodial account liability? ...

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" on Form 990, Part IV, line 10.

		(a) Current year	(b) Prior year	(c) Two years back	(d) Three years back	(e) Four years back

1a	Beginning of year balance ....	4,201,526	4,301,788	2,978,590	2,655,861	2,767,697
b	Contributions ...	728,640	644,380	1,701,611	779,757	537,120
c	Net investment earnings, gains, and losses	-225,367	99,430	297,446	266,146	-38,661
d	Grants or scholarships ...	-9,000	-8,300	-10,500	-6,600	-8,500
e	Other expenditures for facilities and programs ...	-907,252	-835,772	-665,359	-716,574	-601,795
f	Administrative expenses ....
g	End of year balance ......	3,788,547	4,201,526	4,301,788	2,978,590	2,655,861

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

Board designated or quasi-endowment SchDMd Bullet

80.680 %

Permanent endowment SchDMd Bullet

Term endowment SchDMd Bullet

19.320 %

The percentages on 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" on 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" on Form 990, Part IV, line 11a. See Form 990, Part X, line 10.

Description of property		(a) Cost or other basis (investment)	(b) Cost or other basis (other)	(c) Accumulated depreciation	(d) Book value

1a	Land .....	20		20
b	Buildings ....	3,824,810	2,760,738	1,064,072
c	Leasehold improvements
d	Equipment ....	237,912	234,938	2,974
e	Other .....	1,859,413	1,801,108	58,305
Total. Add lines 1a through 1e. (Column (d) must equal Form 990, Part X, column (B), line 10(c).)..				1,125,371

Schedule D (Form 990) 2019

Page 3

Part VII

InvestmentsOther Securities.
Complete if the organization answered "Yes" on 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........
(3)Other
(B)
(C)
(D)
(E)
(F)
(G)
(H)
(I)
Total. (Column (b) must equal Form 990, Part X, col. (B) line 12.)

Part VIII

InvestmentsProgram Related. Complete if the organization answered 'Yes' on 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

(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Total. (Column (b) must equal Form 990, Part X, col.(B) line 13.)

Part IX

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

(a) Description				(b) Book value

(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Total. (Column (b) must equal Form 990, Part X, col.(B) line 15.)...........

Part X

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

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

(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
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) 2019

Page 4

Part XI Reconciliation of Revenue per Audited Financial Statements With Revenue per Return. Complete if the organization answered 'Yes' on Form 990, Part IV, line 12a.
1	Total revenue, gains, and other support per audited financial statements .......			1	1,750,053
2	Amounts included on line 1 but not on Form 990, Part VIII, line 12:
a	Net unrealized gains (losses) on investments ....	2a	-355,175
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	-355,175
3	Subtract line 2e from line 1..................			3	2,105,228
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	13,529
b	Other (Describe in Part XIII.) ...........	4b
c	Add lines 4a and 4b....................			4c	13,529
5	Total revenue. Add lines 3 and 4c. (This must equal Form 990, Part I, line 12.) ......			5	2,118,757

Part XII Reconciliation of Expenses per Audited Financial Statements With Expenses per Return. Complete if the organization answered 'Yes' on Form 990, Part IV, line 12a.
1	Total expenses and losses per audited financial statements ...........			1	2,085,870
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	2,085,870
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	13,529
b	Other (Describe in Part XIII.) ............	4b
c	Add lines 4a and 4b.....................			4c	13,529
5	Total expenses. Add lines 3 and 4c. (This must equal Form 990, Part I, line 18.) ......			5	2,099,399

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. NET ASSETS WITH DONOR RESTRICTIONS 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.

Schedule D (Form 990) 2019

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

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2019

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" on 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) (such as, 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 the region	(f) Total expenditures for and investments in the region
	EAST ASIA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	6,039
	SOUTH AMERICA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	2,923
	SOUTH ASIA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	6,000
	NORTH AMERICA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	756
	EUROPA	PROGRAM SERVICES	TRAVEL SUPPORT TO US	44,499
	MIDDLE EAST	PROGRAM SERVICES	TRAVEL SUPPORT TO US	1,499











3a	Sub-total ....			61,716
b	Total from continuation sheets to Part I ...
c	Totals (add lines 3a and 3b)			61,716

For Paperwork Reduction Act Notice, see the Instructions for Form 990.Cat. No. 50082W Schedule F (Form 990) 2019

Schedule F (Form 990) 2019

Page 2

Part II

Grants and Other Assistance to Organizations or Entities Outside the United States. Complete if the organization answered "Yes" on 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 noncash assistance	(h) Description of noncash assistance	(i) Method of valuation (book, FMV, appraisal, other)

2	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 .......
3	Enter total number of other organizations or entities .......................

Schedule F (Form 990) 2019

Schedule F (Form 990) 2019Page 3

Part III

Grants and Other Assistance to Individuals Outside the United States. Complete if the organization answered "Yes" on 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	13	8,439	SEE PART V.
HSG, REGISTRATION, TRAVEL	EUROPE	114	82,731	SEE PART V.
HSG, REGISTRATION, TRAVEL	SOUTH AMERICA	3	2,923	SEE PART V.
HSG, REGISTRATION, TRAVEL	SOUTH ASIA	7	6,000	SEE PART V.
HSG,REGISTRATION, TRAVEL	NORTH AMERICA	7	4,220	SEE PART V.
HSG. REGISTRATION, TRAVEL	MIDDLE EAST	8	4,449	SEE PART V.

Schedule F (Form 990) 2019

Page 4

Part IV

Foreign Forms

Schedule F (Form 990) 2019

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 6,039 0 SOUTH AMERICA 2,923 0 SOUTH ASIA 6,000 0 NORTH AMERICA 756 0 EUROPA 44,499 0 MIDDLE EAST 1,499 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 650, 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) 2019

Additional Data

Software ID:
Software Version:

- TIN:

Note: To capture the full content of this document, please select landscape mode (11" x 8.5") when printing.

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," on Form 990, Part IV, line 21 or 22.
lBullet

Attach to Form 990.
lBullet

Go to www.irs.gov/Form990 for the latest information.

OMB No. 1545-0047

2019

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 Domestic Organizations and Domestic Governments. Complete if the organization answered "Yes" on 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 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 noncash assistance	(h) Purpose of grant or assistance
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)

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) 2019

Page 2

Part III

Grants and Other Assistance to Domestic Individuals. Complete if the organization answered "Yes" on 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	(d) Amount of noncash assistance	(e) Method of valuation (book, FMV, appraisal, other)	(f) Description of noncash assistance

(1) HSG, REGISTRATION, TRAVEL	141	98,994
(2) GIFTS AND GRANTS	31	18,483
(2)
(3)
(4)
(5)
(6)
(7)

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 ONE OF 2 DIFFERENT SOURCES. THOSE SUPPORTED BY NSF RECEIVED 375 PER WEEK. THE 57 PHYSICISTS SUPPORTED BY THE SIMONS FOUNDATION RECEIVED 525 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) 2019

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

Go to www.irs.gov/Form990 for instructions and the latest information.

OMB No. 1545-0047

2019

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), section 501(c)(4), and section 501(c)(29) 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 the 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 Benefiting 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
(1) BALASUBRAMANIAN VIJAY	GENERAL MEMBER	1,500	4 WEEKS HOUSING
(2) BHANOT GYAN	GENERAL MEMBER	750	2 WEEKS HOUSING
(3) CSAKI CSABA	GENERAL MEMBER	750	2 WEEKS HOUSING
(4) ELVANG HENRIETTE	GENERAL MEMBER	750	2 WEEKS HOUSING
(5) ELVIS MARTIN	GENERAL MEMBER	1,125	3 WEEKS HOUSING
(6) FABBIANO GIUSEPPINA	TRUSTEE	1,125	3 WEEKS HOUSING
(7) GOLDBART PAUL	GENERAL MEMBER	1,125	3 WEEKS HOUSING
(8) GROSBERG ALEXANDER Y	TRUSTEE	1,500	4 WEEKS HOUSING
(9) HAN TAO	GENERAL MEMBER	750	2 WEEKS HOUSING
(10) HUANG KERWYN CASEY	GENERAL MEMBER	750	2 WEEKS HOUSING
(11) HULET RANDALL	GENERAL MEMBER	750	2 WEEKS HOUSING
(12) KAPUSTIN ANTON	GENERAL MEMBER	750	2 WEEKS HOUSING
(13) KETTERLE WOLFGANG	GENERAL MEMBER	750	2 WEEKS HOUSING
(14) KIM YONG-BAEK	GENERAL MEMBER	1,125	3 WEEKS HOUSING
(15) KRAUS PER	GENERAL MEMBER	750	2 WEEKS HOUSING
(16) LIGETI ZOLTAN	TRUSTEE	1,125	3 WEEKS HOUSING
(17) LISANTI MARIANGELA	GENERAL MEMBER	750	2 WEEKS HOUSING
(18) MARTIN CRYSTAL	GENERAL MEMBER	375	1 WEEK HOUSING
(19) MITRA ADITI	GENERAL MEMBER	750	2 WEEKS HOUSING
(20) MOORE JOEL	GENERAL MEMBER	750	2 WEEKS HOUSING
(21) MORRISON DAVID R	TRUSTEE	1,875	5 WEEKS HOUSING
(22) MURRAY NORMAN	GENERAL MEMBER	1,875	5 WEEKS HOUSING
(23) NAJITA JOAN	GENERAL MEMBER	1,125	3 WEEKS HOUSING
(24) NELSON PHIL	GENERAL MEMBER	750	2 WEEKS HOUSING
(25) RABE KARIN	CHAIR	1,500	4 WEEKS HOUSING
(26) REFAEL GIL	SCIENTIFIC SECRETARY	1,875	5 WEEKS HOUSING
(27) SHAEVITZ JOSHUA	GENERAL MEMBER	1,125	3 WEEKS HOUSING
(28) SI QIMIAO	ASSISTANT TREASURER	1,875	5 WEEKS HOUSING
(29) TAIT TIM	GENERAL MEMBER	1,125	3 WEEKS HOUSING
(30) TAYLOR WASHINGTON	GENERAL MEMBER	750	2 WEEKS HOUSING
(31) TODADRI SENTHILL	GENERAL MEMBER	750	2 WEEKS HOUSING
(32) TROYER MATHIAS	VICE PRESIDENT	1,125	3 WEEKS HOUSING
(33) WECHSLER RISA	GENERAL MEMBER	1,125	3 WEEKS HOUSING
(34) YACOBY AMIR	GENERAL MEMBER	750	2 WEEKS HOUSING
(35) YU CLARE	CORPORATE SECRETARY	1,875	5 WEEKS HOUSING
(36) ZUREK KATHRYN	GENERAL MEMBER	1,125	3 WEEKS 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) 2019

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

HULET, RANDALL GENERAL MEMBER 750 2 WEEKS HOUSING KAPUSTIN, ANTON GENERAL MEMBER 750 2 WEEKS HOUSING KETTERLE, WOLFGANG GENERAL MEMBER 750 2 WEEKS HOUSING KIM, YONG-BAEK GENERAL MEMBER 1,125 3 WEEKS HOUSING KRAUS, PER GENERAL MEMBER 750 2 WEEKS HOUSING LIGETI, ZOLTAN TRUSTEE 1,125 3 WEEKS HOUSING LISANTI, MARIANGELA GENERAL MEMBER 750 2 WEEKS HOUSING MARTIN, CRYSTAL GENERAL MEMBER 375 1 WEEK HOUSING MITRA, ADITI GENERAL MEMBER 750 2 WEEKS HOUSING MOORE, JOEL GENERAL MEMBER 750 2 WEEKS HOUSING MORRISON, DAVID R TRUSTEE 1,875 5 WEEKS HOUSING MURRAY, NORMAN GENERAL MEMBER 1,875 5 WEEKS HOUSING NAJITA, JOAN GENERAL MEMBER 1,125 3 WEEKS HOUSING NELSON, PHIL GENERAL MEMBER 750 2 WEEKS HOUSING RABE, KARIN CHAIR 1,500 4 WEEKS HOUSING REFAEL, GIL SCIENTIFIC SECRETARY 1,875 5 WEEKS HOUSING SHAEVITZ, JOSHUA GENERAL MEMBER 1,125 3 WEEKS HOUSING SI, QIMIAO ASSISTANT TREASURER 1,875 5 WEEKS HOUSING TAIT, TIM GENERAL MEMBER 1,125 3 WEEKS HOUSING TAYLOR, WASHINGTON GENERAL MEMBER 750 2 WEEKS HOUSING TODADRI, SENTHILL GENERAL MEMBER 750 2 WEEKS HOUSING TROYER, MATHIAS VICE PRESIDENT 1,125 3 WEEKS HOUSING WECHSLER, RISA GENERAL MEMBER 1,125 3 WEEKS HOUSING YACOBY, AMIR GENERAL MEMBER 750 2 WEEKS HOUSING YU, CLARE CORPORATE SECRETARY 1,875 5 WEEKS HOUSING ZUREK, KATHRYN GENERAL MEMBER 1,125 3 WEEKS HOUSING

SCHEDULE L, PART V

HOUSING AND REGISTRATION ASSISTANCE WAS PROVIDED TO INDIVIDUALS WHO PARTICIPATED IN CENTER PROGRAMMING. SOME INDIVIDUALS ARE PAID DIRECT REIMBURSEMENTS BY THE CENTER FOR COSTS INCURRED (UP TO A STANDARD, MAXIMUM AMOUNT), AND SOME INDIVIDUALS BENEFIT FROM INDIRECT SUPPORT BY HAVING HOUSING AND/OR REGISTRATION COSTS PAID FOR ON THEIR BEHALF BY GRANT AND/OR CONTRIBUTION FUNDING RECEIVED BY THE CENTER. ALL MEMBERS, TRUSTEES, AND OFFICERS WHO RECEIVE ANY DIRECT REIMBURSEMENTS FROM THE CENTER, OR WHO INDIRECTLY BENEFIT BY HAVING COSTS PAID FOR ON THEIR BEHALF, ARE INCLUDED IN THIS SCHEDULE. THE AMOUNTS INCLUDED IN SCHEDULE L MAY NOT RECONCILE TO EXPENSES IN PT. IX, LINES 2 AND 3 BECAUSE OF THE FOLLOWING REASONS: 1) REGISTRATION FEES ARE PAID TO THE CENTER BY ALL PARTICIPANTS TO COVER COSTS ASSOCIATED WITH PROGRAMMING, WHICH TAKES PLACE AT THE CENTER. BECAUSE THIS EXPENSE IS NOT PAID TO A THIRD PARTY, IT IS NOT INCLUDED IN THE SCHEDULE OF FUNCTIONAL EXPENSE. THE REGISTRATION EXPENSE IS INTENDED TO COVER THE COSTS OF THE CENTER, INCLUDING EXPENSES SUCH AS UTILITIES, MAINTENANCE/REPAIRS, SUPPLIES, STAFFING, ETC. 2) HOUSING UNITS ARE RESERVED BY THE CENTER FOR LONG-TERM PERIODS IN ORDER TO ENSURE HOUSING IS AVAILABLE FOR PHYSICISTS. THE COSTS OF THE HOUSING IS PAID FOR BY THE CENTER TO VARIOUS LANDLORDS OR MANAGEMENT COMPANIES. PERSONS WHO RECEIVE HOUSING ASSISTANCE HAVE HOUSING FEES WAIVED OR REDUCED. THE COSTS OF HOUSING PROVIDED TO THE PHYSICISTS IS INCLUDED IN "HOUSING RENTS" IN PT. IX, LINE 24A.

Schedule L (Form 990 or 990-EZ) 2019

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 990-EZ or to provide any additional information.
MediumBullet

Attach to Form 990 or 990-EZ.
MediumBullet

Go to www.irs.gov/Form990 for the latest information.

OMB No. 1545-0047

2019

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, PAGE 1, PART I, LINE 6	VOLUNTEER 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. OTHER VOLUNTEERS: -- 36 LECTURERS, DIALOGUE SPEAKERS, AND SUMMER AND WINTER KIDS SPEAKERS OFFERED FREE-OF-CHARGE PUBLIC LECTURES TO LOCAL AND VISITING ASPEN AUDIENCES. -- 16 COLLOQUIUM SPEAKERS DELIVERED TALKS ABOUT THEIR FIELDS FOR ALL PHYSICISTS IN RESIDENCE, PARTICULARLY FOR THOSE WHO WORK IN FIELDS OTHER THAN THE SPEAKER'S. -- 22 HIGH SCHOOL MENTORS MET WITH ACP'S HIGH SCHOOL INTERNS TO ANSWER STUDENTS' QUESTIONS ABOUT COLLEGE AND CAREERS. -- 73 SUMMER AND WINTER ORGANIZERS PROPOSE WORKSHOP OR CONFERENCE TOPICS AND THEN MANAGE THE EVENT. -- 13 HIGH SCHOOL INTERNS INTERVIEW 11 RADIO SHOW SPEAKERS.
FORM 990, PAGE 2, PART III, LINE 4A	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 16 WEEKS 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, 8 TO 9 ONE- WEEK WINTER CONFERENCES BRING TOGETHER 60 TO 100 RESEARCHERS PER WEEK 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 THE CENTER. 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. DURING THE FISCAL YEAR ENDED MARCH 31, 2020, THERE WERE 565 SUMMER PARTICIPANTS (SUMMER 2019) AND 395 WINTER PARTICIPANTS (IN JANUARY, FEBRUARY, AND MARCH 2020).
FORM 990, PAGE 2, PART III, LINE 4B	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. RENOWNED PHYSICISTS DELIVER WINTER AND SUMMER LECTURES IN ASPEN VENUES DELINEATING THEIR CURRENT RESEARCH OR CURRENT SCIENTIFIC TOPICS OF GENERAL INTEREST. SUMMER ATTENDANCE AT 12 LECTURES WAS 998 PEOPLE. WINTER ATTENDANCE AT 6 LECTURES WAS 570, WHILE TWO ADDITIONAL LECTURES WERE CANCELLED DUE TO COVID-19. (2) 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. SIX PICNICS WERE HELD DURING SUMMER 2019. (3) HIGH SCHOOL MENTOR PROGRAM. ACP HIRES RISING SENIOR PHYSICS STUDENTS FROM 3-5 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 19 PHYSICISTS AND STUDENTS PARTICIPATED IN 2019. (4) HIGH SCHOOL MONTHLY RADIO SHOW--RADIO PHYSICS. VALLEY HIGH SCHOOL PHYSICS STUDENTS FROM 3-5 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 20 STUDENT AND PHYSICIST PARTICIPANTS FOR THIS FISCAL YEAR. (5) 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 2020, 224 PEOPLE ATTENDED 6 CAFES, WHILE AN ADDITIONAL TWO WERE CANCELLED DUE TO COVID-19. (6) ALL PUBLIC LECTURES ARE RECORDED AND ALL VIDEOS ARE AVAILABLE FOR VIEWING ON THE ASPEN CENTER FOR PHYSICS YOUTUBE CHANNEL AND WITH LINKS FROM THE ACP WEBSITE. THERE ARE OVER 300 ACP SCIENTIFIC LECTURES AND INTERVIEWS AVAILABLE AT NO CHARGE ONLINE. (7) 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," WHICH 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 LISTENING TO RADIO BROADCASTS OR VIEWING VIDEOS ON TELEVISION OR ONLINE IS 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) 2019

Additional Data

Software ID:
Software Version:

		Prior Year	Current Year
8	Contributions and grants (Part VIII, line 1h) .........	717,866	806,511
9	Program service revenue (Part VIII, line 2g) .........	1,160,906	1,080,271
10	Investment income (Part VIII, column (A), lines 3, 4, and 7d ) ....	85,469	124,984
11	Other revenue (Part VIII, column (A), lines 5, 6d, 8c, 9c, 10c, and 11e)	44,600	106,991
12	Total revenue—add lines 8 through 11 (must equal Part VIII, column (A), line 12)	2,008,841	2,118,757
13	Grants and similar amounts paid (Part IX, column (A), lines 1–3 )...	240,028	226,239
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)	254,821	277,910
16a	Professional fundraising fees (Part IX, column (A), line 11e) .....		0
b	Total fundraising expenses (Part IX, column (D), line 25) 2,779
17	Other expenses (Part IX, column (A), lines 11a–11d, 11f–24e)....	1,408,194	1,595,250
18	Total expenses. Add lines 13–17 (must equal Part IX, column (A), line 25)	1,903,043	2,099,399
19	Revenue less expenses. Subtract line 18 from line 12.......	105,798	19,358
		Beginning of Current Year	End of Year
20	Total assets (Part X, line 16).............	6,154,885	5,406,411
21	Total liabilities (Part X, line 26).............	442,466	29,809
22	Net assets or fund balances. Subtract line 21 from line 20.....	5,712,419	5,376,602

Sign Here

	Signature of officer	Date

	Type or print name and title


4a	(Code: ) (Expenses $ 1,787,022 including grants of $ 226,239 ) (Revenue $ 1,080,271 )
	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 16 WEEKS 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, 8 TO 9 ONE- WEEK WINTER CONFERENCES BRING TOGETHER 60 TO 100 RESEARCHERS PER WEEK 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 THE CENTER. 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. DURING THE FISCAL YEAR ENDED MARCH 31, 2020, THERE WERE 565 SUMMER PARTICIPANTS (SUMMER 2019) AND 395 WINTER PARTICIPANTS (IN JANUARY, FEBRUARY, AND MARCH 2020).

4b	(Code: ) (Expenses $ 35,993 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. RENOWNED PHYSICISTS DELIVER WINTER AND SUMMER LECTURES IN ASPEN VENUES DELINEATING THEIR CURRENT RESEARCH OR CURRENT SCIENTIFIC TOPICS OF GENERAL INTEREST. SUMMER ATTENDANCE AT 12 LECTURES WAS 998 PEOPLE. WINTER ATTENDANCE AT 6 LECTURES WAS 570, WHILE TWO ADDITIONAL LECTURES WERE CANCELLED DUE TO COVID-19. (2) 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. SIX PICNICS WERE HELD DURING SUMMER 2019. (3) HIGH SCHOOL MENTOR PROGRAM. ACP HIRES RISING SENIOR PHYSICS STUDENTS FROM 3-5 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 19 PHYSICISTS AND STUDENTS PARTICIPATED IN 2019. (4) HIGH SCHOOL MONTHLY RADIO SHOW--RADIO PHYSICS. VALLEY HIGH SCHOOL PHYSICS STUDENTS FROM 3-5 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 20 STUDENT AND PHYSICIST PARTICIPANTS FOR THIS FISCAL YEAR. (5) 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 2020, 224 PEOPLE ATTENDED 6 CAFES, WHILE AN ADDITIONAL TWO WERE CANCELLED DUE TO COVID-19. (6) ALL PUBLIC LECTURES ARE RECORDED AND ALL VIDEOS ARE AVAILABLE FOR VIEWING ON THE ASPEN CENTER FOR PHYSICS YOUTUBE CHANNEL AND WITH LINKS FROM THE ACP WEBSITE. THERE ARE OVER 300 ACP SCIENTIFIC LECTURES AND INTERVIEWS AVAILABLE AT NO CHARGE ONLINE. (7) 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," WHICH 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 LISTENING TO RADIO BROADCASTS OR VIEWING VIDEOS ON TELEVISION OR ONLINE IS 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 expenses1,823,015

(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
(18) QIMIAO SI........................................................................ ASST TREASUR	1.00 .......................	X	X	0	0	0
(19) ILONA NEMETH........................................................................ TRUSTEE	0.50 .......................	X		0	0	0
(20) CSAKI CSABA........................................................................ ASST SCIENTI	0.50 .......................	X	X	0	0	0
(21) AMANDA JENKINS........................................................................ ADMIN VICE P	40.00 .......................		X	103,333	0	6,200

1b	Sub-Total................
c	Total from continuation sheets to Part VII, Section A....
d	Total (add lines 1b and 1c)...........	103,333	6,200

1	Briefly describe the organization’s mission or most significant activities: THE CENTER IS A SCIENTIFIC ORGANIZATION WHICH PROMOTES ORGANIZED RESEARCH IN PHYSICS, ASTROPHYSICS, AND RELATED FIELDS.
2	Check this box
3	Number of voting members of the governing body (Part VI, line 1a) ........	3	75
4	Number of independent voting members of the governing body (Part VI, line 1b) .....	4	75
5	Total number of individuals employed in calendar year 2019 (Part V, line 2a) ......	5	5
6	Total number of volunteers (estimate if necessary) .............	6	43
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 39 .........	7b

(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

1a	Federated campaigns..		1a
b	Membership dues..		1b
c	Fundraising events..		1c
d	Related organizations		1d
e	Government grants (contributions)		1e	525,600

f	All other contributions, gifts, grants, and similar amounts not included above		1f	280,911

g	Noncash contributions included in lines 1a - 1f:$		1g

h Total. Add lines 1a-1f.......		806,511

		Business Code
2a	PARTICIPANT HOUSING REIMBURSE	541700	557,022	557,022
b	REGISTRATION FEES - SUMMER	541700	287,225	287,225
c	REGISTRATION FEES - WINTER	541700	173,600	173,600
d	OTHER SUMMER PARTICIPANTS	541700	49,642	49,642
e	OTHER WINTER PARTICIPANTS	541700	12,782	12,782
f	All other program service revenue.
g	Total. Add lines 2a–2f .....		1,080,271

3 Investment income (including dividends, interest, and othersimilar amounts) ......			91,144			91,144
4 Income from investment of tax-exempt bond proceeds
5 Royalties...........
		(ii) Personal	(i) Real
6a	Gross rents		104,309	6a
b	Less: rental expenses			6b
c	Rental income or (loss)		104,309	6c
d	Net rental income or (loss).......			104,309			104,309
		(ii) Other	(i) Securities
7a	Gross amount from sales of assets other than inventory		286,792	7a
b	Less: cost or other basis and sales expenses		252,952	7b
c	Gain or (loss)		33,840	7c
d	Net gain or (loss).........			33,840	33,840
8a	Gross income from fundraising events (not including $ of contributions reported on line 1c). See Part IV, line 18 ....
			8a
b	Less: direct expenses ...		8b
c	Net income or (loss) from fundraising events..
9a	Gross income from gaming activities. See Part IV, line 19 ...
			9a
b	Less: direct expenses ...		9b
c	Net income or (loss) from gaming activities..
10a	Gross sales of inventory, less returns and allowances ..
			10a
b	Less: cost of goods sold ..		10b
c	Net income or (loss) from sales of inventory..
Business Code			Miscellaneous Revenue
11a	OTHER REVENUE AND REFUNDS		541700	2,682	2,682
b
c
d	All other revenue ....
e	Total. Add lines 11a–11d ......			2,682
12	Total revenue. See instructions.....			2,118,757	1,116,793		195,453

1	Grants and other assistance to domestic organizations and domestic governments. See Part IV, line 21 ....
2	Grants and other assistance to domestic individuals. See Part IV, line 22 ...........	117,477	117,477
3	Grants and other assistance to foreign organizations, foreign governments, and foreign individuals. See Part IV, lines 15 and 16. .............	108,762	108,762
4	Benefits paid to or for members .......
5	Compensation of current officers, directors, trustees, and key employees ...........	105,698	68,704	35,937	1,057
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........	143,534	95,731	46,367	1,436
8	Pension plan accruals and contributions (include section 401(k) and 403(b) employer contributions) ....	7,763	5,181	2,505	77
9	Other employee benefits .......	15,027	9,918	4,959	150
10	Payroll taxes ...........	5,888	3,886	1,943	59
11	Fees for services (non-employees):
a	Management ......
b	Legal .........
c	Accounting ...........	10,550		10,550
d	Lobbying ...........
e	Professional fundraising services. See Part IV, line 17
f	Investment management fees ......	13,529		13,529
g	Other (If line 11g amount exceeds 10% of line 25, column (A) amount, list line 11g expenses on Schedule O)	24,169	24,169
12	Advertising and promotion ....	871	871
13	Office expenses .......	44,155	33,378	10,777
14	Information technology ......	9,384	4,129	5,255
15	Royalties ..
16	Occupancy ...........	103,266	45,395	57,871
17	Travel ............
18	Payments of travel or entertainment expenses for any federal, state, or local public officials .
19	Conferences, conventions, and meetings ....	84,793	84,793
20	Interest ...........
21	Payments to affiliates .......
22	Depreciation, depletion, and amortization ..	128,040	56,337	71,703
23	Insurance ...	21,801	9,592	12,209
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 & CLEANING	1,080,730	1,080,730
b	PARTCPNT EXP--REIMBURSED	62,773	62,773
c	PUBLIC LECTURES-FILMING	5,400	5,400
d	PUBLIC LECTURES-OUTREACH	4,877	4,877
e	All other expenses	912	912
25	Total functional expenses. Add lines 1 through 24e	2,099,399	1,823,015	273,605	2,779
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).

1	Cash–non-interest-bearing ........			538,347	1	280,561
2	Savings and temporary cash investments .........			103,474	2	103,575
3	Pledges and grants receivable, net ......			812,643	3	619,501
4	Accounts receivable, net .............			20,104	4	52,566
5	Loans and other payables to any current or former officer, director, trustee, key employee, creator or founder, substantial contributor, or 35% controlled entity or family member of any of these persons .......
					5
6	Loans and other receivables from other disqualified persons (as defined under section 4958(f)(1)), and persons described in section 4958(c)(3)(B) ...
					6
7	Notes and loans receivable, net ...........				7
8	Inventories for sale or use ............				8
9	Prepaid expenses and deferred charges ......			20,119	9	20,010
10a	Land, buildings, and equipment: cost or other basis. Complete Part VI of Schedule D	10a	5,922,155
b	Less: accumulated depreciation	10b	4,796,784	1,210,745	10c	1,125,371
11	Investments—publicly traded securities .			3,449,453	11	3,204,827
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 33)...			6,154,885	16	5,406,411

17	Accounts payable and accrued expenses .....	26,426	17	19,509
18	Grants payable ...		18
19	Deferred revenue .........	416,040	19	10,300
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 any current or former officer, director, trustee, key employee, creator or founder, substantial contributor, or 35% controlled entity or family member of any of these persons .........
			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..	442,466	26	29,809

	Organizations that follow FASB ASC 958, check here and complete lines 27, 28, 32, and 33.
27	Net assets without donor restrictions ..........	4,792,814	27	4,644,609
28	Net assets with donor restrictions ...........	919,605	28	731,993
	Organizations that do not follow FASB ASC 958, check here and complete lines 29 through 33.
29	Capital stock or trust principal, or current funds .....		29
30	Paid-in or capital surplus, or land, building or equipment fund ...		30
31	Retained earnings, endowment, accumulated income, or other funds		31
32	Total net assets or fund balances ...........	5,712,419	32	5,376,602
33	Total liabilities and net assets/fund balances ........	6,154,885	33	5,406,411

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 separately 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; don't file with Form 990). . . . . . . . . . . . . . . . . . . . . . . .	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 separately file Form 5713, International Boycott Report (see Instructions for Form 5713; don't file with Form 990).. . . . . . . . . . . . . . . . . . . . . . . . . . . .	Yes	No