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      <PayrollTaxes>
        <Total>370677</Total>
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      <FeesForServicesManagement>
        <Total>0</Total>
      </FeesForServicesManagement>
      <FeesForServicesLegal>
        <Total>301592</Total>
        <ProgramServices>182376</ProgramServices>
        <ManagementAndGeneral>119216</ManagementAndGeneral>
      </FeesForServicesLegal>
      <FeesForServicesAccounting>
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        <ManagementAndGeneral>145940</ManagementAndGeneral>
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      <FeesForServicesLobbying>
        <Total>0</Total>
      </FeesForServicesLobbying>
      <FeesForServicesProfFundraising>
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      </FeesForServicesProfFundraising>
      <FeesForServicesInvstMgmntFees>
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      </FeesForServicesInvstMgmntFees>
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        <ProgramServices>1487044</ProgramServices>
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      <Advertising>
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      </Advertising>
      <OfficeExpenses>
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        <ProgramServices>286148</ProgramServices>
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      <InformationTechnology>
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        <ProgramServices>154838</ProgramServices>
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      <Royalties>
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      </Royalties>
      <Occupancy>
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        <ProgramServices>361374</ProgramServices>
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      <Travel>
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        <ProgramServices>580461</ProgramServices>
        <ManagementAndGeneral>61472</ManagementAndGeneral>
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      <TravelEntrtnmntPublicOfficials>
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      </TravelEntrtnmntPublicOfficials>
      <ConferencesMeetings>
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        <ProgramServices>64711</ProgramServices>
        <ManagementAndGeneral>77992</ManagementAndGeneral>
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      <Interest>
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      </Interest>
      <PaymentsToAffiliates>
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        <Total>207394</Total>
        <ProgramServices>207394</ProgramServices>
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      <Insurance>
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        <ProgramServices>97853</ProgramServices>
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        <Description>SUBCONTRACTS</Description>
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        <ProgramServices>3188472</ProgramServices>
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      <OtherExpenses>
        <Description>JPL RELATED EXPENSES</Description>
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        <ProgramServices>2298500</ProgramServices>
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      <OtherExpenses>
        <Description>FEES</Description>
        <Total>87855</Total>
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      <OtherExpenses>
        <Description>MOVING EXPENSE</Description>
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      <OtherExpenses>
        <Description>WRITE-OFF OF EQUIPMENT</Description>
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      <FSAudited>true</FSAudited>
      <AuditCommittee>true</AuditCommittee>
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        <CurrentTaxYearMinus1Year>0</CurrentTaxYearMinus1Year>
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        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>28673</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>227172</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartIII>
        <Identifier>SCHEDULE J, PART II</Identifier>
        <Explanation>GARY SANDERS RECEIVED A FORM W-2 FROM THE CALIFORNIA INSTITUTE OF TECHNOLOGY DURING CALENDAR YEAR 2010. TMT OBSERVATORY CORPORATION REIMBURSES CALTECH FOR HIS COMPENSATION AND BENEFITS.</Explanation>
      </Form990ScheduleJPartIII>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <GeneralExplanation>
        <Identifier>Organization's Mission</Identifier>
        <ReturnReference>Form 990, Part III, Line 1</ReturnReference>
        <Explanation>TMT OBSERVATORY CORPORATION (TMT) IS A NONPROFIT PUBLIC BENEFIT CORPORATION FOUNDED BY THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (UC) AND CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH), HEREINAFTER COLLECTIVELY "FOUNDING MEMBERS" AND WAS ORIGINALLY INCORPORATED AS THE "CELT DEVELOPMENT CORPORATION" ON OCTOBER 30, 2003. THE FOUNDING MEMBERS ESTABLISHED TMT FOR THE INITIAL PURPOSE OF DEVELOPING THE DESIGN OF A GIANT SEGMENTED MIRROR TELESCOPE, THE THIRTY METER TELESCOPE, WITH THE POTENTIAL OF CONSTRUCTING, COMMISSIONING AND OPERATING AN OBSERVATORY. IN ADDITION TO THE GOALS AND MISSIONS AS DESCRIBED ABOVE, TMT WILL FOSTER SCIENTIFIC INTERACTION BETWEEN EDUCATIONAL AND RESEARCH INSTITUTIONS TO FURTHER COLLEGE AND UNIVERSITY EDUCATIONAL RESEARCH IN ASTRONOMY. Form 990, Part VI, Line 2 FAMILY OR BUSINESS RELATIONSHIPS DIRECTOR, DR. HENRY YANG, IS CHANCELLOR AT THE UNIVERSITY OF CALIFORNIA, SANTA BARBARA. DIRECTORS, DR. MICHAEL BOLTE AND DR. STEVEN OLSEN, AND TREASURER, NATHAN BROSTROM, ARE EMPLOYED BY THE UNIVERSITY OF CALIFORNIA. FORM 990, PART VI, LINES 6 AND 7 MEMBERS TMT HAS TWO MEMBERS UNIVERSITY OF CALIFORNIA (UC) AND CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH). MEMBERS APPOINT REPRESENTATIVES TO THE BOARD. FORM 990, PART VI, LINE 11B PROCESS USED BY THE ORGANIZATION TO REVIEW FORM 990 WORKING WITH PRICEWATERHOUSECOOPERS, LLP ("PWC"), THE FORM 990 IS PREPARED. THE FORM 990 IS THEN REVIEWED BY MANAGEMENT AND THE AUDIT COMMITTEE. PRIOR TO FILING WITH THE IRS THE FINAL FORM 990 IS MADE AVAILABLE TO THE FULL BOARD. PWC SIGNS THE RETURN AS PAID PREPARER AND ELECTRONICALLY FILES THE RETURN WITH THE IRS. FORM 990, PART VI, LINE 12C CONFLICT OF INTEREST POLICY ON AN ANNUAL BASIS, TMT OBSERVATORY CORPORATION ("TMT") DISTRIBUTES CONFLICT OF INTEREST LETTERS WHICH THE BOARD MEMBERS AND KEY EMPLOYEES COMPLETE AND RETURN. MANAGEMENT OF TMT REVIEWS THE RETURNED FORMS FOR COMPLIANCE. IF A CONFLICT IS DISCOVERED IT IS ESCALATED TO THE APPROPRIATE PARTY WITHIN THE ORGANIZATION. FORM 990, PART VI, LINE 15 PROCESS TO DETERMINING COMPENSATION TMT HAS AN EXECUTIVE COMPENSATION COMMITTEE THAT ANNUALLY REVIEWS THE COMPENSATION OF THE ORGANIZATION'S KEY EMPLOYEES by analyzing comparable data. THE COMMITTEE'S DELIBERATIONS ARE DOCUMENTED. FORM 990, PART VI, LINE 19 AVAILABILITY OF GOVERNING DOCUMENTS AND POLICIES GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST. FORM 990, PART VII Beginning June 2011, Ann MARTIN became an employee of TMT and works 10 hours a week in her position.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
  </ReturnData>
</Return>