Liabilities / Assets
55th percentile
Higher debt load relative to assets than 55% of similar nonprofits.
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
55th percentile
Higher debt load relative to assets than 55% of similar nonprofits.
Liabilities / Revenue
67th percentile
Higher debt load relative to revenue than 67% of similar nonprofits.
Net Margin
92nd percentile
Higher net margin than 92% of similar nonprofits.
Top Officer Pay
22nd percentile
Higher top officer pay than 22% of similar nonprofits.
Top officer pay equals 0.7% of source-year revenue.
Asset Growth
93rd percentile
Faster asset growth than 93% of similar nonprofits.
Revenue Growth
94th percentile
Faster revenue growth than 94% of similar nonprofits.
Assets
Up$65,145,325
Up $17,082,677 (+36%) from 2018
Net Assets
Up$44,406,194
Up $12,912,278 (+41%) from 2018
Liabilities
Up$20,739,131
Up $4,170,399 (+25%) from 2018
Revenue
Up$29,221,520
Up $12,424,221 (+74%) from 2018
Expenses
Up$14,346,917
Up $1,517,499 (+12%) from 2018
Net Income
Up$14,874,603
Up $10,906,722 (+275%) from 2018
Lowell's mission is to pursue the study of astronomy, especially the study of the solar system and its evolution; conduct pure research in astronomical phenomena; provide quality public education and outreach programs to bring the results of astronomical research to the public.
Lowell's mission is to pursue the study of astronomy
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Land, Buildings, and Equipment, Net | $44,877,993 | $48,356,606 | ▲ $3,478,613 |
| Pledges and Grants Receivable | $2,060,984 | $13,030,741 | ▲ $10,969,757 |
| Savings and Temporary Cash Investments | $234,343 | $1,929,990 | ▲ $1,695,647 |
| Investments in Publicly Traded Securities | $8,865 | $1,005,946 | ▲ $997,081 |
| Cash and Non-Interest-Bearing Accounts | $210,694 | $133,267 | ▼ $77,427 |
| Prepaid Expenses and Deferred Charges | $153,267 | $103,221 | ▼ $50,046 |
| Inventories for Sale or Use | $83,530 | $92,423 | ▲ $8,893 |
| Intangible Assets | - | $60,736 | - |
| Accounts Receivable | $6,986 | $8,383 | ▲ $1,397 |
| Total Assets | $48,062,648 | $65,145,325 | ▲ $17,082,677 |
| Other Assets Total | $425,986 | $424,012 | ▼ $1,974 |
| Liabilities | |||
| Other Liabilities | $750,000 | $10,201,020 | ▲ $9,451,020 |
| Deferred Revenue | $7,847,278 | $7,514,979 | ▼ $332,299 |
| Mortgage Notes Payable Secured by Investment Property | $7,482,787 | $2,595,000 | ▼ $4,887,787 |
| Accounts Payable and Accrued Expenses | $488,667 | $428,132 | ▼ $60,535 |
| Total Liabilities | $16,568,732 | $20,739,131 | ▲ $4,170,399 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $27,968,589 | $28,859,141 | ▲ $890,552 |
| Net Assets With Donor Restrictions | $3,525,327 | $15,547,053 | ▲ $12,021,726 |
| Total Net Assets Fund Balance | $31,493,916 | $44,406,194 | ▲ $12,912,278 |
| Total Liabilities and Net Assets / Fund Balance | $48,062,648 | $65,145,325 | ▲ $17,082,677 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $24,223,792 | $14,456,829 | $38,680,621 |
| Buildings | $17,703,974 | $5,868,711 | $23,572,685 |
| Other Land Buildings | $4,067,432 | $905,111 | $4,972,543 |
| Leasehold Improvements | $1,108,320 | $3,035,503 | $4,143,823 |
| Land | $1,253,088 | - | $1,253,088 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2019 | $26,558,269 | $709,421 | ▲ $4,013,194 | - | $30,997,339 |
| 2018 | $33,571,683 | $467,872 | ▼ $1,781,866 | - | $26,558,269 |
| 2017 | $39,620,403 | $1,476,056 | ▲ $4,372,359 | - | $33,571,683 |
| 2016 | $37,221,789 | $1,254,991 | ▲ $2,174,579 | $94,516 | $39,620,403 |
| 2015 | $35,590,304 | $2,282,857 | ▼ $377,198 | - | $37,221,789 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Hall Jeffrey C | Director | FT | $168,611 | $35,858 | $204,469 |
| Massey Philip | Astronomer | FT | $155,163 | $16,723 | $171,886 |
| Schleicher David | Astronomer | FT | $151,552 | $16,407 | $167,959 |
| Hunter Deidre | Astronomer | FT | $146,279 | $17,814 | $164,093 |
| Actor Anne T | Deputy Director for Development | FT | $147,724 | $16,300 | $164,024 |
| West Michael | Deputy Director for Science | FT | $150,949 | $8,584 | $159,533 |
| Labruzzo Anne | Deputy Director for Administration | FT | $139,113 | $17,045 | $156,158 |
| Putnam W Lowell | Trustee - Sole | PT | $71 | $8,567 | $8,638 |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Building & Engineering Contractors South | Construction | PO BOX 30458, Flagstaff, AZ 86003 | $3,260,523 |
| Johnson Walzer Associates LLC | Construction | 17 N SAN FRANCISCO STREET STE 3A, Flagstaff, AZ 86001 | $243,925 |
| Twilight Janitorial Service INC | Janitorial Services | 506 N GRANT STREET STE D, Flagstaff, AZ 86004 | $120,059 |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Securities Publicly Traded | 18 | $2,397,246 | Transaction Value |
| Other Non Cash Contri Table | 9 | $26,863 | Fair Market Value |
| Other Non Cash Contri Table | 1 | $3,100 | Fair Market Value |
| Other Non Cash Contri Table | 2 | $2,025 | Fair Market Value |
| Collectibles | 1 | $1,395 | Fair Market Value |
| Total Noncash Contributions | 31 | $2,430,629 | - |
| Line Item | Amount |
|---|---|
| Salaries, Compensation, and Employee Benefits | $7,869,184 |
| Other Expenses | $5,658,676 |
| Total Fundraising Expense | $1,199,361 |
| Grants and Similar Amounts Paid | $819,057 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Other Salaries and Wages | $4,908,282 | $658,058 | $624,029 | $6,190,369 |
| Depreciation Depletion | $1,898,164 | $35,411 | $20,152 | $1,953,727 |
| Grants to Domestic Orgs | $819,057 | - | - | $819,057 |
| Occupancy | $575,353 | $19,102 | $11,395 | $605,850 |
| Other Employee Benefits | $450,898 | $67,186 | $55,634 | $573,718 |
| Office Expenses | $372,486 | $55,226 | $65,372 | $493,084 |
| Payroll Taxes | $349,740 | $69,424 | $44,245 | $463,409 |
| Current Officers, Directors, Trustees, and Key Employees | $62,628 | $268,561 | $38,076 | $369,265 |
| Travel | $239,974 | $51,625 | $50,402 | $342,001 |
| Insurance | $323,518 | $3,278 | $1,175 | $327,971 |
| Pension Plan Contributions | $214,941 | $31,505 | $25,977 | $272,423 |
| Advertising | $155,027 | - | $65,370 | $220,397 |
| Fees for Services Other | $72,383 | $67,640 | $34,824 | $174,847 |
| Information Technology | $52,706 | $50,903 | $54,809 | $158,418 |
| All Other Expenses | $76,153 | $16,202 | $47,718 | $140,073 |
| Conferences and Meetings | $24,731 | $35,606 | $54,813 | $115,150 |
| Other Expenses | $57,862 | $23,225 | $1,166 | $82,253 |
| Interest | $68,089 | - | - | $68,089 |
| Fees for Services Accounting | - | $48,760 | - | $48,760 |
| Fees for Services Legal | $5,340 | $15,241 | - | $20,581 |
| Fees for Service Investment Mgmnt Fees | - | $970 | - | $970 |
| Total Functional Expenses | $11,560,170 | $1,587,386 | $1,199,361 | $14,346,917 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Northern Arizona University | Flagstaff, AZ | State of Arizona | Nasa Grant - Subaward Collaboration Research | $338,482 |
| Planetary Science Institute | Tucson, AZ | 501(c)(3) | Nasa Grant - Subaward Collaboration Research | $131,447 |
| Northern Arizona University | Flagstaff, AZ | State of Arizona | Nsf Grant - Subaward Collaboration Research | $78,732 |
| University of Maryland | College Park, MD | State of Maryland | Nasa Grant - Subaward Collaboration Research | $59,308 |
| University of Maryland - Baltimore County | Baltimore, MD | State of Maryland | Nasa Grant - Subaward Collaboration Research | $43,431 |
| Lowell Observatory Foundation | Flagstaff, AZ | 501(c)(3) | Support for Operations | $41,020 |
| Massachusetts Institute of Technology | Cambridge, MA | 501(c)(3) | Nasa Grant - Subaward Collaboration Research | $38,911 |
| Northern Arizona University | Flagstaff, AZ | State of Arizona | Donor Funds for Predoctoral Student Salary | $32,235 |
| University of Pittsburgh | Pittsburgh, PA | 501(c)(3) | Nasa Grant - Subaward Collaboration Research | $22,423 |
| Lowell Observatory Foundation | Flagstaff, AZ | 501(c)(3) | To Fund an Endowment | $12,374 |
| Percival Lowell Trust | Flagstaff, AZ | 501(c)(3) | Support for Operations | $10,714 |
| Purdue University | West Lafayette, IN | 501(c)(3) | Nasa Grant - Subaward Collaboration Research | $9,980 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Due to Percival Lowell Trust Uw | $10,200,000 |
| Due to Lowell Observatory Foundation | $1,020 |
“The form 990 draft will be first reviewed by the deputy director for administration (dda) for accuracy. Once it has been deemed accurate by the dda it will be forwarded to the sole trustee, director and audit committee for their review and comments. After any questions and comments have been addressed it will be approved and a final copy will be signed and filed by the dda.”
“The organization conducts weekly reviews of payables including potential conflicts of interest and follow-up occurs to enforce compliance with the company policy.”
“Compensation of the director for lowell observatory is determined by the sole trustee of the corporation after review of information provided by the human resource administrator and members of the advisory board who are or have been members of the scientific business community. The human resource administrator reviews the total compensation of the director in accordance with regulations/guidelines established by the irs and industry best practices. Data regarding salaries of other directors (ceos) at organizations of similar size, including both non-profit and for-profit companies is also reviewed. The sole trustee, with advice from the advisory board, also establishes goals and objectives for the director and evaluates the performance of the director based on the prior year's goals and objectives.”
“When requested, documents regarding the observatory are provided by the business office. The 990 and audited financial statements are available on the lowell observatory website. The 990 is also available on guidestar and charity navigator. A summary of the consolidated financial statements is published annually in an annual report.”
“The endowment funds are used for support of lowell observatory and for reinvestment.”
“The following disclosure is related to the combined financial statements of the lowell observatory, trust u/w of percival lowell, and the lowell observatory foundation: the observatory, the foundation, and the trust are exempt from income taxes under both internal revenue code (irc) section 501(c)(3) and arizona income tax laws. The observatory is classified as other than a private foundation under irc section 509(a)(1). The foundation and the trust are each classified as other than a private foundation under irc section 509(a)(3) as a supporting organization of the observatory. Income from certain activities not directly related to the organization's tax-exempt purpose, however, may be subject to taxation as unrelated business taxable income (ubti). From time to time, the organization may be subject to penalties and interest assessed by various taxing authorities, which are classified as general and administrative expenses if they occur.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 488667 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 428132 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 6986 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 8383 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | LOWELL'S MISSION IS TO PURSUE THE STUDY OF ASTRONOMY |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 65370 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 155027 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 220397 |
| IRS990/AllOtherContributionsAmt | 0 | 18515431 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 47718 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 16202 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 76153 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 140073 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ANNE LABRUZZO |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 9282333239 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1400 W MARS HILL ROAD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | FLAGSTAFF |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | AZ |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 860014470 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 210694 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 133267 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 3 |
| IRS990/CollectionsOfArtInd | 0 | 1 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 38076 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 268561 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 62628 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 369265 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 54813 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 35606 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 24731 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 115150 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 3260523 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 243925 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 120059 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | PO BOX 30458 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 17 N SAN FRANCISCO STREET STE 3A |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 506 N GRANT STREET STE D |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | FLAGSTAFF |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | FLAGSTAFF |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | FLAGSTAFF |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | AZ |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | AZ |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | AZ |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 86003 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 86001 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 86004 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | BUILDING & ENGINEERING CONTRACTORS SOUTH |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | JOHNSON WALZER ASSOCIATES LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | TWILIGHT JANITORIAL SERVICE INC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONSTRUCTION |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | CONSTRUCTION |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | JANITORIAL SERVICES |
| IRS990/CostOfGoodsSoldAmt | 0 | 327648 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 22432053 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 819057 |
| IRS990/CYInvestmentIncomeAmt | 0 | 2074969 |
| IRS990/CYOtherExpensesAmt | 0 | 5658676 |
| IRS990/CYOtherRevenueAmt | 0 | 441100 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 4273398 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 14874603 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 7869184 |
| IRS990/CYTotalExpensesAmt | 0 | 14346917 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1199361 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 29221520 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 7847278 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 7514979 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 20152 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 35411 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 1898164 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 1953727 |
| IRS990/Desc | 0 | CONTINUING A 125-YEAR-LONG LEGACY OF ASTRONOMICAL DISCOVERY, LOWELL OBSERVATORY ASTRONOMERS CONDUCTED FOREFRONT RESEARCH IN ALL AREAS OF ASTRONOMY, INCLUDING STUDIES OF THE SUN, SOLAR SYSTEM, STARS, EXOPLANETS, GALAXIES, AND COSMOLOGY. IN 2019, LOWELL ASTRONOMERS PUBLISHED MORE THAN 72 PAPERS IN LEADING SCIENTIFIC JOURNALS, PARTICIPATED REGULARLY IN MAJOR SCIENTIFIC MISSIONS, USED MAJOR TELESCOPES AROUND THE WORLD AND IN SPACE, AND WERE ACTIVE IN PUBLIC OUTREACH. LOWELL ASTRONOMERS CONTINUE TO BE VERY SUCCESSFUL AT OBTAINING GRANTS IN SUPPORT OF THEIR RESEARCH FROM NASA, THE NATIONAL SCIENCE FOUNDATION, AND OTHER AGENCIES. THE 4.3-METER LOWELL DISCOVERY TELESCOPE (LDT) DELIVERED 300 SCIENCE NIGHTS IN 2019 TO ASTRONOMERS FROM OUR OWN STAFF AND FROM OUR PARTNER INSTITUTIONS (CURRENT PARTNERS ARE BOSTON UNIVERSITY, NORTHERN ARIZONA UNIVERSITY, UNIVERSITY OF MARYLAND, UNIVERSITY OF TOLEDO, AND YALE UNIVERSITY). LDT'S GROWING SUITE OF STATE-OF-THE-ART INSTRUMENTS, SUCH AS THE WORLD-LEADING INFRARED SPECTROGRAPH IGRINS AND THE NEW HIGH-PRECISION SPECTROGRAPH EXPRES, ENABLED CUTTING-EDGE RESEARCH ACROSS MULTIPLE FIELDS, INCLUDING THE SEARCH FOR EXOPLANETS. IN PARTNERSHIP WITH THE US NAVAL OBSERVATORY AND THE NAVAL RESEARCH LABORATORY, LOWELL HAS BEGUN A MULTI-MILLION DOLLAR UPGRADE OF THE NAVAL PRECISION OPTICAL INTERFEROMETER (NPOI) THAT WILL ADD THREE ONE-METER TELESCOPES TO THE EXISTING ARRAY, GREATLY INCREASING THE NUMBER OF OBJECTS OBSERVABLE FROM THAT SITE. LOWELL OBSERVATORY ALSO CONTINUED TO OPERATE OTHER SMALLER TELESCOPES AT ITS ANDERSON MESA SITE, INCLUDING THE HIGHLY SCIENTIFICALLY PRODUCTIVE 42 AND 31" TELESCOPES. ACCESS TO LOCAL TELESCOPES EQUIPPED WITH WORLD-CLASS INSTRUMENTS HAS ENABLED SCIENCE THAT COULD NOT BE DONE ELSEWHERE. IN ADDITION, THE OBSERVATORY IS UNDERTAKING A DRAMATIC EXPANSION OF ITS MAIN CAMPUS ON MARS HILL, INCLUDING NEW EDUCATION AND OUTREACH FACILITIES, ALONG WITH A NEW TECHNICAL SERVICES BUILDING THAT WILL GREATLY INCREASE THE SCIENTIFIC CAPABILITIES OF ITS SUITE OF TELESCOPES. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 3525327 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 15547053 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 183 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 9193463 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditPerformedInd | 0 | 1 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 1 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 48760 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 48760 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 15241 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 5340 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 20581 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 34824 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 67640 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 72383 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 174847 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 970 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 970 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 30.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 36.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 38.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 8567 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 17858 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 17045 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 16407 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 16723 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 17814 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 8584 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 16300 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | PUTNAM W LOWELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | HALL JEFFREY C |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | LABRUZZO ANNE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | SCHLEICHER DAVID |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | MASSEY PHILIP |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | HUNTER DEIDRE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | WEST MICHAEL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | ACTOR ANNE T |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 71 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 186611 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 139113 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 151552 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 155163 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 146279 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 150949 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 147724 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TRUSTEE - SOLE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DEPUTY DIRECTOR FOR ADMINISTRATION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | ASTRONOMER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | ASTRONOMER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | ASTRONOMER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DEPUTY DIRECTOR FOR SCIENCE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DEPUTY DIRECTOR FOR DEVELOPMENT |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1946 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/OtherAmt | 0 | 56500 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 2008644 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 1 |
| IRS990/GovernmentGrantsAmt | 0 | 2567102 |
| IRS990/GrantAmt | 0 | 819057 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 819057 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 819057 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/OtherAmt | 0 | 56500 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 2449779 |
| IRS990/GrossReceiptsAmt | 0 | 29990303 |
| IRS990/GrossSalesOfInventoryAmt | 0 | 646260 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 0 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 18 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 54809 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 50903 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 52706 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 158418 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 1175 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 3278 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 323518 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 327971 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 60736 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 68089 |
| IRS990/InterestGrp/TotalAmt | 0 | 68089 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 83530 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 92423 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 9825 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 9825 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 8865 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 1005946 |
| IRS990/IRPDocumentCnt | 0 | 51 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 24266154 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 44877993 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 48356606 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 72622760 |
| IRS990/LegalDomicileStateCd | 0 | AZ |
| IRS990/LessCostOthBasisSalesExpnssGrp/OtherAmt | 0 | 0 |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 441135 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembershipDuesAmt | 0 | 339265 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | LOWELL'S MISSION IS TO PURSUE THE STUDY OF ASTRONOMY, ESPECIALLY THE STUDY OF THE SOLAR SYSTEM AND ITS EVOLUTION; CONDUCT PURE RESEARCH IN ASTRONOMICAL PHENOMENA; PROVIDE QUALITY PUBLIC EDUCATION AND OUTREACH PROGRAMS TO BRING THE RESULTS OF ASTRONOMICAL RESEARCH TO THE PUBLIC. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 7482787 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 2595000 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 31493916 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 44406194 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 2065144 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 2065144 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 318612 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 318612 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -1962325 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 27968589 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 28859141 |
| IRS990/NoncashContributionsAmt | 0 | 2430629 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 11395 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 19102 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 575353 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 605850 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 65372 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 55226 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 372486 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 493084 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 425986 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 424012 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 55634 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 67186 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 450898 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 573718 |
| IRS990/OtherExpensesGrp/Desc | 0 | INTERCOMPANY REIMBURSEM |
| IRS990/OtherExpensesGrp/Desc | 1 | REPAIRS AND MAINTENANCE |
| IRS990/OtherExpensesGrp/Desc | 2 | TRAINING AND DEVELOPMEN |
| IRS990/OtherExpensesGrp/Desc | 3 | DUES AND SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 1402 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 2802 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 1166 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 6130 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 63333 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 23225 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 633676 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 149691 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 49471 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 57862 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 633676 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 157223 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 115606 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 82253 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 750000 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 10201020 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS INCOME |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 122488 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 122488 |
| IRS990/OtherRevenueTotalAmt | 0 | 122488 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 624029 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 658058 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 4908282 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 6190369 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 44245 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 69424 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 349740 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 463409 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 25977 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 31505 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 214941 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 272423 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 2060984 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 13030741 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 153267 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 103221 |
| IRS990/PrincipalOfficerNm | 0 | JEFF HALL |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 541700 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611600 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 541700 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | TELESCOPE ACCESS FEES |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | EDUCATIONAL PROGRAMS |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | RESEARCH - GOVERNMENT CONTRACTS |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2376660 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 1187696 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 709042 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 2376660 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 1187696 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 709042 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | THE YEAR 2019 MARKED THE 125TH ANNIVERSARY OF LOWELL OBSERVATORY, WHOSE PUBLIC EDUCATION PROGRAMS WELCOMED MORE THAN 100,000 GUESTS FROM AROUND THE WORLD. GUESTS ENJOYED HISTORICAL TOURS OF THE CAMPUS AND SOLAR VIEWING DURING THE DAY AND WERE AWED BY ASTRONOMY-THEMED PRESENTATIONS AND TELESCOPE VIEWING DURING THE EVENING. THE GIOVALE OPEN DECK OBSERVATORY, A NEW STATE-OF-THE-ART PUBLIC OBSERVING PLAZA EQUIPPED WITH SIX ADVANCED TELESCOPES, OPENED TO THE PUBLIC ON SATURDAY, OCTOBER 6, 2019. SOME 1,800 VISITORS PARTICIPATED IN THE FESTIVITIES THAT DAY, SETTING THE RECORD FOR ONE-DAY ATTENDANCE. THE OBSERVATORY ALSO HOSTED SEVERAL HIGH-PROFILE EVENTS RELATED TO THE 50TH ANNIVERSARY OF THE APOLLO MOON LANDING AS PART OF FLAGSTAFF'S LUNAR LEGACY CAMPAIGN, WHICH GARNERED MULTIPLE AWARDS. LOWELL OBSERVATORY CAMPS FOR KIDS (LOCKS) PROGRAMS WERE OFFERED TO CHILDREN THROUGHOUT THE YEAR AT BOTH ON- AND OFF-SITE LOCATIONS. THESE PROGRAMS, FEATURING HANDS-ON ASTRONOMY AND PHYSICS EXERCISES AND EXPLORATIONS, ARE DESIGNED TO ILLUMINATE THE INTERCONNECTIONS BETWEEN STEM SUBJECT AREAS AND FOSTER THE ABILITY TO THINK CRITICALLY. ON-SITE, ATTENDANCE REACHED RECORD LEVELS FOR BOTH ELEMENTARY AND MIDDLE SCHOOL CAMPS. OFF-SITE, A RECORD NUMBER OF CHILDREN PARTICIPATED IN LOCKS PROGRAMS AT THE FLAGSTAFF FAMILY FOOD CENTER, AND ADDITIONAL CLASSROOMS IN CAVE CREEK, ARIZONA, ADOPTED THE LOCKS - PRESCHOOL CURRICULUM. LOWELL ASTRONOMERS AND EDUCATORS VISITED SEVERAL NATIVE AMERICAN CLASSES THROUGHOUT THE SCHOOL YEAR TO LEAD ASTRONOMY LESSONS AND HOST STAR PARTIES AS PART OF THE OBSERVATORY'S LONG-RUNNING NATIVE AMERICAN ASTRONOMY OUTREACH PROGRAM. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 2366707 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 1506308 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 11300815 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 744082 |
| IRS990/PYInvestmentIncomeAmt | 0 | 143345 |
| IRS990/PYOtherExpensesAmt | 0 | 4894757 |
| IRS990/PYOtherRevenueAmt | 0 | 358358 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 4994781 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 3967881 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 7190579 |
| IRS990/PYTotalExpensesAmt | 0 | 12829418 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 16797299 |
| IRS990/QuidProQuoContributionsInd | 0 | 1 |
| IRS990/QuidProQuoContriDisclInd | 0 | 1 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 14874603 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 1 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 1 |
| IRS990/RelatedOrganizationsAmt | 0 | 1010255 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 3208190 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 234343 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1929990 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 22432053 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 11300816 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 17637617 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 7675056 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 3697510 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 62743052 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearAmt | 0 | 122000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus1YearAmt | 0 | 121000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 120000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 119000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 118000 |
| IRS990ScheduleA/GovtFurnSrvcFcltsVl170Grp/TotalAmt | 0 | 600000 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 9825 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 2268 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 3661 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 37614 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 110959 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 164327 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 22903517 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.74470 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.91940 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 47351025 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 15992027 |
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Displayed year
2019 • Form 990Detailed filing. Detailed filing data is available for this year.