Monterey Institute For Research In Astronomy

Marina, CA
Tax-exempt since Nov. 1972
EIN: 23-7128629

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Type of Nonprofit

Designated as a 501(c)(3) Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Science and Technology Research Institutes, Services / Astronomy (NTEE)

Donations to this organization are tax deductible.

Details

According to its Dec. 2024 tax filing, this nonprofit:

Reported conflict of interest transactions

Organizations must report loans, grants or business transactions with interested parties, which may include key employees and officers, their family members and any businesses in which they hold a controlling interest. These transactions must be reported on Schedule L.

Revenue

$397k (2024)

Expenses

$461k (2024)

Total Assets

$5.04M (2024)

Total Liabilities

$26.5k (2024)

Years with missing data

Source: Form 990 tax filings from 2011 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Revenue

$397,080

Expenses

$461,456

Net Income

-$64,376

Net Assets

$5,013,763

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$281,977	71.0%
Program Services	$500	0.1%
Investment Income	$55,273	13.9%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$26,560	6.7%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	-$3,700
Other Revenue	$36,470	9.2%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$306,757	66.5%

Assets/Debt
Total Assets	$5,040,296
Total Liabilities	$26,533
Net Assets	$5,013,763

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Gordon Jones (Chairman Of The Board)	$0	$0	$0
Craig Chester (President)	$0	$0	$0
Dennis Mar (Secretary Treasurer)	$0	$0	$0
Bruce Weaver (Observatory Director)	$0	$0	$0
Gary Love (Director)	$0	$0	$0
Richard Stedman (Director)	$0	$0	$0
Phyllis Cleveland (Director)	$0	$0	$0

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990

Filed on Nov. 18, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2023

Revenue

$430,903

Expenses

$366,122

Net Income

$64,781

Net Assets

$4,650,984

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$179,594	41.7%
Program Services	$400	0.1%
Investment Income	$58,401	13.6%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$32,285	7.5%
Net Fundraising	$0
Sales of Assets	$27,870	6.5%
Net Inventory Sales	$13	0.0%
Other Revenue	$132,340	30.7%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$246,386	67.3%

Assets/Debt
Total Assets	$4,653,331
Total Liabilities	$2,347
Net Assets	$4,650,984

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Gordon Jones (Chairman Of The Board)	$0	$0	$0
Craig Chester (President)	$0	$0	$0
Dennis Mar (Secretary Treasurer)	$0	$0	$0
Bruce Weaver (Observatory Director)	$0	$0	$0
Gary Love (Director)	$0	$0	$0
Richard Stedman (Director)	$0	$0	$0
Phyllis Cleveland (Director)	$0	$0	$0

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990

Filed on Oct. 16, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending Dec.
2022

Revenue

$224,132

Expenses

$586,844

Net Income

-$362,712

Net Assets

$4,315,147

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$143,621	64.1%
Program Services	$2,750	1.2%
Investment Income	$31,827	14.2%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$29,460	13.1%
Net Fundraising	$0
Sales of Assets	$16,300	7.3%
Net Inventory Sales	$174	0.1%
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$212,106	36.1%

Assets/Debt
Total Assets	$4,324,792
Total Liabilities	$9,645
Net Assets	$4,315,147

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Gordon Jones (Chairman Of The Board)	$0	$0	$0
Craig Chester (President)	$0	$0	$0
Dennis Mar (Secretary Treasurer)	$0	$0	$0
Bruce Weaver (Observatory Director)	$0	$0	$0
Gary Love (Director)	$0	$0	$0
Richard Stedman (Director)	$0	$0	$0

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990

Filed on Nov. 6, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2021

Revenue

$315,435

Expenses

$472,574

Net Income

-$157,139

Net Assets

$4,703,129

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$238,835	75.7%
Program Services	$2,500	0.8%
Investment Income	$37,561	11.9%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$27,600	8.7%
Net Fundraising	$0
Sales of Assets	$8,912	2.8%
Net Inventory Sales	$27	0.0%
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$175,687	37.2%

Assets/Debt
Total Assets	$4,714,732
Total Liabilities	$11,603
Net Assets	$4,703,129

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Gordon Jones (Chairman Of The Board)	$0	$0	$0
Craig Chester (President)	$0	$0	$0
Dennis Mar (Secretary Treasurer)	$0	$0	$0
Bruce Weaver (Observatory Director)	$0	$0	$0
Gary Love (Director)	$0	$0	$0
Richard Stedman (Director)	$0	$0	$0

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990

Filed on Oct. 11, 2022

Primary tax return for a nonprofit’s activities, finances, and governance

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PDF XML

Fiscal Year Ending Dec.
2020

Revenue

$1,905,927

Expenses

$255,518

Net Income

$1,650,409

Net Assets

$4,471,302

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$1,846,002	96.9%
Program Services	$0
Investment Income	$26,376	1.4%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$23,425	1.2%
Net Fundraising	$0
Sales of Assets	$10,143	0.5%
Net Inventory Sales	-$19
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$81,118	31.7%

Assets/Debt
Total Assets	$4,477,794
Total Liabilities	$6,492
Net Assets	$4,471,302

Reported conflict of interest transactions

Compensation

Key Employees and Officers	Compensation	Related	Other
Gordon Jones (Chairman Of The Board)	$0	$0	$0
Craig Chester (President)	$0	$0	$0
Dennis Mar (Secretary Treasurer)	$0	$0	$0
Bruce Weaver (Observatory Director)	$0	$0	$0
Gary Love (Director)	$0	$0	$0
Richard Stedman (Director)	$0	$0	$0

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990

Filed on Oct. 21, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

XML

Fiscal Year Ending Dec.
2018

Revenue

$301,109

Expenses

$425,160

Net Income

-$124,051

Net Assets

$2,385,897

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$274,882	91.3%
Program Services	$1,910	0.6%
Investment Income	$9,831	3.3%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$22,260	7.4%
Net Fundraising	$0
Sales of Assets	-$5,326
Net Inventory Sales	-$2,548
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$56,267	13.2%

Assets/Debt
Total Assets	$2,413,741
Total Liabilities	$27,844
Net Assets	$2,385,897

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

PDF (2 of 2)

Fiscal Year Ending Dec.
2017

Revenue

$413,262

Expenses

$341,236

Net Income

$72,026

Net Assets

$2,578,848

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$372,477	90.1%
Program Services	$0
Investment Income	$14,898	3.6%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$24,173	5.8%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$1,714	0.4%
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$72,321	21.2%

Assets/Debt
Total Assets	$2,608,397
Total Liabilities	$29,549
Net Assets	$2,578,848

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2016

Revenue

$672,540

Expenses

$267,625

Net Income

$404,915

Net Assets

$2,490,463

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$556,146	82.7%
Program Services	$0
Investment Income	$72,354	10.8%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$222	0.0%
Other Revenue	$43,818	6.5%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$26,417	9.9%

Assets/Debt
Total Assets	$2,510,762
Total Liabilities	$20,299
Net Assets	$2,490,463

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2015

Revenue

$363,258

Expenses

$234,851

Net Income

$128,407

Net Assets

$2,131,432

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$265,481	73.1%
Program Services	$0
Investment Income	$10,629	2.9%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$40,989	11.3%
Net Inventory Sales	$0
Other Revenue	$46,159	12.7%

Notable Expenses		Percent of Total Expenses
Executive Compensation	$0
Professional Fundraising Fees	$0
Other Salaries and Wages	$36,435	15.5%

Assets/Debt
Total Assets	$2,188,984
Total Liabilities	$57,552
Net Assets	$2,131,432

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

PDF (2 of 2)

Fiscal Year Ending Dec.
2014

Revenue

$121,116

Expenses

$198,318

Net Income

-$77,202

Net Assets

$2,981,281

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$121,116	100%
Program Services	$0
Investment Income	$0
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$25,790	13.0%
Professional Fundraising Fees	$0
Other Salaries and Wages	$22,122	11.2%

Assets/Debt
Total Assets	$2,981,281
Total Liabilities	$0
Net Assets	$2,981,281

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

PDF (2 of 2)

Fiscal Year Ending Dec.
2013

Revenue

$62,160

Expenses

$194,806

Net Income

-$132,646

Net Assets

$3,020,865

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$59,538	95.8%
Program Services	$2,622	4.2%
Investment Income	$0
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$25,080	12.9%
Professional Fundraising Fees	$0
Other Salaries and Wages	$3,862	2.0%

Assets/Debt
Total Assets	$3,020,865
Total Liabilities	$0
Net Assets	$3,020,865

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending Dec.
2012

Revenue

$173,865

Expenses

$201,879

Net Income

-$28,014

Net Assets

$930,395

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$89,656	51.6%
Program Services	$73,072	42.0%
Investment Income	$11,137	6.4%
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$64,993	32.2%
Professional Fundraising Fees	$0
Other Salaries and Wages	$0

Assets/Debt
Total Assets	$930,395
Total Liabilities	$0
Net Assets	$930,395

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending Dec.
2011

Revenue

$136,874

Expenses

$272,131

Net Income

-$135,257

Net Assets

$509,507

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$63,777	46.6%
Program Services	$73,097	53.4%
Investment Income	$0
Bond Proceeds	$0
Royalties	$0
Rental Property Income	$0
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$0

Notable Expenses		Percent of Total Expenses
Executive Compensation	$29,133	10.7%
Professional Fundraising Fees	$0
Other Salaries and Wages	$69,050	25.4%

Assets/Debt
Total Assets	$509,507
Total Liabilities	$0
Net Assets	$509,507

990

Primary tax return for a nonprofit’s activities, finances, and governance

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

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Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

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Monterey Institute For Research In Astronomy

Organization summary

Type of Nonprofit

Details

Summary charts: organization finances over time

Revenue $397k (2024)

Expenses $461k (2024)

Total Assets $5.04M (2024)

Total Liabilities $26.5k (2024)

Tax Filings by Year

Fiscal Year Ending Dec. 2024

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from Form 990

Other

Compensation

Document Links

990

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990

Document Links

990

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990

No Document Links

Fiscal Year Ending Dec. 2012

Extracted Financial Data

Extracted Financial Data from Form 990

No Document Links

Fiscal Year Ending Dec. 2011

Extracted Financial Data

Revenue

$397k (2024)

Expenses

$461k (2024)

Total Assets

$5.04M (2024)

Total Liabilities

$26.5k (2024)

Fiscal Year Ending Dec.
2024

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

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2021

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2020

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2018

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2016

Fiscal Year Ending Dec.
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Fiscal Year Ending Dec.
2014

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2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
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2001