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      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>URS CORPORATION</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1999 AVENUE OF THE STARS SUITE 260</AddressLine1Txt>
            <CityNm>LOS ANGELES</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>90067</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PROF ENG CONSULTING</ServicesDesc>
        <CompensationAmt>453300</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>CALIFORNIA INSTITUTE OF TECHNOLOGY</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1200 E California Blvd</AddressLine1Txt>
            <CityNm>PASADENA</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91125</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>SCIENTIFIC SERVICES</ServicesDesc>
        <CompensationAmt>512209</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>BCF SOLUTIONS INC</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>14325 WILLARD ROAD SUITE 107</AddressLine1Txt>
            <CityNm>CHANTILLY</CityNm>
            <StateAbbreviationCd>VA</StateAbbreviationCd>
            <ZIPCd>20151</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PROF SERVICES</ServicesDesc>
        <CompensationAmt>242768</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>M3 ENGINEERING</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2051 W SUNSET ROAD 101</AddressLine1Txt>
            <CityNm>TUCSON</CityNm>
            <StateAbbreviationCd>AZ</StateAbbreviationCd>
            <ZIPCd>85704</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ENGINEERING</ServicesDesc>
        <CompensationAmt>502298</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <PersonNm>ADAPTIVE OPTICS ASSOCIATES INCORPOR</PersonNm>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>10 WILSON ROAD</AddressLine1Txt>
            <CityNm>CAMBRIDGE</CityNm>
            <StateAbbreviationCd>MA</StateAbbreviationCd>
            <ZIPCd>02138</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>ENGINEERING</ServicesDesc>
        <CompensationAmt>175000</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>8</CntrctRcvdGreaterThan100KCnt>
      <GovernmentGrantsAmt>232676</GovernmentGrantsAmt>
      <AllOtherContributionsAmt>6234886</AllOtherContributionsAmt>
      <TotalContributionsAmt>6467562</TotalContributionsAmt>
      <TotalProgramServiceRevenueAmt>0</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
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        <ExclusionAmt>1943</ExclusionAmt>
      </InvestmentIncomeGrp>
      <IncmFromInvestBondProceedsGrp>
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      </IncmFromInvestBondProceedsGrp>
      <RoyaltiesRevenueGrp>
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      </RoyaltiesRevenueGrp>
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        <PersonalAmt>0</PersonalAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetRentalIncomeOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetGainOrLossInvestmentsGrp>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <NetIncomeFromGamingGrp>
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      </NetIncomeFromGamingGrp>
      <NetIncomeOrLossGrp>
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      </NetIncomeOrLossGrp>
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      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>6469505</TotalRevenueColumnAmt>
        <ExclusionAmt>1943</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
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      </GrantsToDomesticOrgsGrp>
      <GrantsToDomesticIndividualsGrp>
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      </GrantsToDomesticIndividualsGrp>
      <ForeignGrantsGrp>
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      </ForeignGrantsGrp>
      <BenefitsToMembersGrp>
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      </BenefitsToMembersGrp>
      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>57601</ProgramServicesAmt>
        <ManagementAndGeneralAmt>145868</ManagementAndGeneralAmt>
      </CompCurrentOfcrDirectorsGrp>
      <CompDisqualPersonsGrp>
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      <OtherSalariesAndWagesGrp>
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        <ManagementAndGeneralAmt>421970</ManagementAndGeneralAmt>
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      <PensionPlanContributionsGrp>
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        <ProgramServicesAmt>282249</ProgramServicesAmt>
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      <OtherEmployeeBenefitsGrp>
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        <ProgramServicesAmt>82765</ProgramServicesAmt>
        <ManagementAndGeneralAmt>33214</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>56866</ManagementAndGeneralAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>0</TotalAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>53754</TotalAmt>
        <ManagementAndGeneralAmt>53754</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
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        <ProgramServicesAmt>5061</ProgramServicesAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesLobbyingGrp>
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      </FeesForServicesLobbyingGrp>
      <FeesForServicesProfFundraising>
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      </FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
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      </FeesForSrvcInvstMgmntFeesGrp>
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        <ProgramServicesAmt>44350</ProgramServicesAmt>
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      <AdvertisingGrp>
        <TotalAmt>0</TotalAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>497238</TotalAmt>
        <ProgramServicesAmt>342633</ProgramServicesAmt>
        <ManagementAndGeneralAmt>154605</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
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        <ProgramServicesAmt>34175</ProgramServicesAmt>
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      <RoyaltiesGrp>
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      </RoyaltiesGrp>
      <OccupancyGrp>
        <TotalAmt>374884</TotalAmt>
        <ProgramServicesAmt>374884</ProgramServicesAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>176879</TotalAmt>
        <ManagementAndGeneralAmt>176879</ManagementAndGeneralAmt>
      </TravelGrp>
      <PymtTravelEntrtnmntPubOfclGrp>
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      </PymtTravelEntrtnmntPubOfclGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>161099</TotalAmt>
        <ProgramServicesAmt>161099</ProgramServicesAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>0</TotalAmt>
      </InterestGrp>
      <PaymentsToAffiliatesGrp>
        <TotalAmt>0</TotalAmt>
      </PaymentsToAffiliatesGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>200778</TotalAmt>
        <ProgramServicesAmt>200778</ProgramServicesAmt>
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      <InsuranceGrp>
        <TotalAmt>112154</TotalAmt>
        <ProgramServicesAmt>112154</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>SUBCONTRACTS</Desc>
        <TotalAmt>614636</TotalAmt>
        <ProgramServicesAmt>602358</ProgramServicesAmt>
        <ManagementAndGeneralAmt>12278</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>JPL RELATED EXPENSES</Desc>
        <TotalAmt>2278850</TotalAmt>
        <ProgramServicesAmt>2278850</ProgramServicesAmt>
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      <OtherExpensesGrp>
        <Desc>FEES</Desc>
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        <ProgramServicesAmt>166799</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>TIO RELATED EXPENSES</Desc>
        <TotalAmt>-1609790</TotalAmt>
        <ProgramServicesAmt>-1609790</ProgramServicesAmt>
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      <AllOtherExpensesGrp>
        <TotalAmt>76585</TotalAmt>
        <ProgramServicesAmt>76585</ProgramServicesAmt>
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      <TotalFunctionalExpensesGrp>
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        <ProgramServicesAmt>3520880</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1168703</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
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        <EOYAmt>0</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
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        <EOYAmt>5914498</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <PledgesAndGrantsReceivableGrp>
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        <EOYAmt>0</EOYAmt>
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      <AccountsReceivableGrp>
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        <EOYAmt>3211769</EOYAmt>
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      <ReceivablesFromOfficersEtcGrp>
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        <EOYAmt>0</EOYAmt>
      </ReceivablesFromOfficersEtcGrp>
      <RcvblFromDisqualifiedPrsnGrp>
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        <EOYAmt>0</EOYAmt>
      </RcvblFromDisqualifiedPrsnGrp>
      <OthNotesLoansReceivableNetGrp>
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        <EOYAmt>0</EOYAmt>
      </OthNotesLoansReceivableNetGrp>
      <InventoriesForSaleOrUseGrp>
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        <EOYAmt>0</EOYAmt>
      </InventoriesForSaleOrUseGrp>
      <PrepaidExpensesDefrdChargesGrp>
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        <EOYAmt>79687</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>1673883</LandBldgEquipCostOrOtherBssAmt>
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      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>149673</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <InvestmentsPubTradedSecGrp>
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        <EOYAmt>0</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <InvestmentsOtherSecuritiesGrp>
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      </InvestmentsOtherSecuritiesGrp>
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        <EOYAmt>0</EOYAmt>
      </InvestmentsProgramRelatedGrp>
      <IntangibleAssetsGrp>
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        <EOYAmt>0</EOYAmt>
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        <EOYAmt>0</EOYAmt>
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      <TotalAssetsGrp>
        <BOYAmt>10724959</BOYAmt>
        <EOYAmt>9355627</EOYAmt>
      </TotalAssetsGrp>
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        <EOYAmt>992938</EOYAmt>
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      <GrantsPayableGrp>
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        <EOYAmt>0</EOYAmt>
      </GrantsPayableGrp>
      <DeferredRevenueGrp>
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        <EOYAmt>0</EOYAmt>
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      <TaxExemptBondLiabilitiesGrp>
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        <EOYAmt>0</EOYAmt>
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      <EscrowAccountLiabilityGrp>
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        <EOYAmt>0</EOYAmt>
      </EscrowAccountLiabilityGrp>
      <LoansFromOfficersDirectorsGrp>
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        <EOYAmt>0</EOYAmt>
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      <MortgNotesPyblScrdInvstPropGrp>
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      <UnsecuredNotesLoansPayableGrp>
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        <EOYAmt>0</EOYAmt>
      </UnsecuredNotesLoansPayableGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>8589923</BOYAmt>
        <EOYAmt>5132366</EOYAmt>
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      <TotalLiabilitiesGrp>
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        <EOYAmt>6125304</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
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        <EOYAmt>3230323</EOYAmt>
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      <TemporarilyRstrNetAssetsGrp>
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        <EOYAmt>0</EOYAmt>
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      <PermanentlyRstrNetAssetsGrp>
        <BOYAmt>0</BOYAmt>
        <EOYAmt>0</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>3230323</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>9355627</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>1779922</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA">
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      <GiftsGrantsContriRcvd170Grp>
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        <CurrentTaxYearMinus3YearsAmt>15293700</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>15100122</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>6751235</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>6467562</CurrentTaxYearAmt>
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      <TaxRevLeviedOrgnztnlBnft170Grp>
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      </TaxRevLeviedOrgnztnlBnft170Grp>
      <GovtFurnSrvcFcltsVl170Grp>
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      </GovtFurnSrvcFcltsVl170Grp>
      <TotalCalendarYear170Grp>
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        <CurrentTaxYearMinus3YearsAmt>15293700</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>15100122</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>6751235</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>6467562</CurrentTaxYearAmt>
        <TotalAmt>58612619</TotalAmt>
      </TotalCalendarYear170Grp>
      <SubstantialContributorsTotAmt>0</SubstantialContributorsTotAmt>
      <PublicSupportTotal170Amt>58612619</PublicSupportTotal170Amt>
      <GrossInvestmentIncome170Grp>
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        <CurrentTaxYearMinus3YearsAmt>855</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>1192</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>3394</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>1943</CurrentTaxYearAmt>
        <TotalAmt>8488</TotalAmt>
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      <UnrelatedBusinessNetIncm170Grp>
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      </UnrelatedBusinessNetIncm170Grp>
      <OtherIncome170Grp>
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      <PublicSupportCY170Pct>0.99986</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>0.99987</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleB documentId="IRS990ScheduleB">
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        <ContributorBusinessName>
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        </ContributorBusinessName>
        <ContributorUSAddress>
          <AddressLine1>RESTRICTED</AddressLine1>
          <AddressLine2>RESTRICTED</AddressLine2>
          <City>RESTRICTED</City>
          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
        </ContributorUSAddress>
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    </IRS990ScheduleB>
    <IRS990ScheduleD documentId="IRS990ScheduleD">
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      <HeldWorksArtGrp />
      <CYMinus3YrEndwmtFundGrp />
      <CYMinus4YrEndwmtFundGrp />
      <LandGrp />
      <BuildingsGrp />
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      </EquipmentGrp>
      <OtherLandBuildingsGrp />
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      <OtherLiabilitiesOrgGrp>
        <Desc>DUE TO CALIFORNIA INST OF TECH</Desc>
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      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>DUE TO TMT INTERNATIONAL OBSERVATORY</Desc>
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      </OtherLiabilitiesOrgGrp>
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      <TotalExpensesPerForm990Amt>4689583</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>TMT HAS NO REPORTING REQUIREMENTS FOR UNCERTAIN TAX PROVISIONS FOR THE YEARS ENDED SEPTEMBER 30, 2015 AND 2014.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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      </AccountActivitiesOutsideUSGrp>
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      <SubtotalEmployeesCnt>4</SubtotalEmployeesCnt>
      <TotalOfficeCnt>1</TotalOfficeCnt>
      <TotalEmployeeCnt>4</TotalEmployeeCnt>
      <SubtotalSpentAmt>624105</SubtotalSpentAmt>
      <TotalSpentAmt>624105</TotalSpentAmt>
      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE F, PART I, LINE 3, COLUMN (F):</FormAndLineReferenceDesc>
        <ExplanationTxt>FOREIGN EXPENDITURES ARE TRACKED SEPARATELY ON AN ACCRUAL BASIS IN THE ORGANIZATION'S GENERAL LEDGER.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ">
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      <ClubDuesOrFeesInd>X</ClubDuesOrFeesInd>
      <WrittenPolicyRefTAndEExpnssInd>true</WrittenPolicyRefTAndEExpnssInd>
      <SubstantiationRequiredInd>true</SubstantiationRequiredInd>
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>R DAVID GOODMAN</PersonNm>
        <TitleTxt>CHIEF OPERATING OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>192994</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>388</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>31839</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24760</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>249981</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ERIC WILLIAMS</PersonNm>
        <TitleTxt>TELESCOPE OPTICS GROUP LEADER</TitleTxt>
        <BaseCompensationFilingOrgAmt>220971</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>430</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>27142</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19824</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>268367</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LARRY STEPP</PersonNm>
        <TitleTxt>TELESCOPE DEPARTMENT HEAD</TitleTxt>
        <BaseCompensationFilingOrgAmt>232834</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>35302</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11793</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>279929</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>MARK SIROTA</PersonNm>
        <TitleTxt>TELESCOPE CTRLS GROUP LEADER</TitleTxt>
        <BaseCompensationFilingOrgAmt>205761</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>2218</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>32289</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22295</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>262563</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>RAVINDER BHATIA</PersonNm>
        <TitleTxt>ASSOCIATE PROJECT MANAGER</TitleTxt>
        <BaseCompensationFilingOrgAmt>225028</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>624</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>28237</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>24711</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>278600</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SANDRA DAWSON</PersonNm>
        <TitleTxt>MANAGER-HAWAII COMMUNITY AFF</TitleTxt>
        <BaseCompensationFilingOrgAmt>204715</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>19588</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>31359</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>21320</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>276982</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE J, PART I, LINE 1A:</FormAndLineReferenceDesc>
        <ExplanationTxt>TMT PAID A GROSS UP PAYMENT AND SOCIAL CLUB DUES FOR ONE OF ITS HIGHEST COMPENSATED EMPLOYEES. THESE PAYMENTS WERE TREATED AS TAXABLE COMPENSATION. SCHEDULE J, PART I, LINE 3: Henry Yang, the CEO, is not compensated by TMT. R. David Goodman, CHIEF OPERATING OFFICER handleS the day-to-day operations of the organization. SCHEDULE J, PART II THE AMOUNTS INCLUDED ON PART VII AND SCHEDULE J, PART II REFLECT W-2 COMPENSATION AMOUNTS PAID BY TMT TO THE LISTED INDIVIDUALS. CERTAIN LISTED INDIVIDUALS RENDER SERVICE TO TMT INTERNATIONAL OBSERVATORY (TIO), AN UNRELATED ORGANIZATION, PURSUANT TO A PERSONNEL ADMINISTRATIVE AGREEMENT. TMT IS REIMBURSED BY TIO FOR ANY SUCH SERVICES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 1 AND PART III, LINES 1 AND 4A:</FormAndLineReferenceDesc>
        <ExplanationTxt>ORGANIZATION'S MISSION AND PROGRAM SERVICE ACTIVITY 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.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>BUSINESS RELATIONSHIPS CHAIR, DR. HENRY YANG, IS CHANCELLOR AT THE UNIVERSITY OF CALIFORNIA, SANTA BARBARA. DIRECTOR, DR. MICHAEL BOLTE, DIRECTOR, NATHAN BROSTROM, AND SECRETARY, LARRY ADKISON ARE EMPLOYED BY THE UNIVERSITY OF CALIFORNIA. TREASURER DEAN CURRIE, IS VP FOR BUSINESS AND FINANCE AT CALIFORNIA INSTITUTE OF TECHNOLOGY. VICE CHAIR B. THOMAS SOIFER, IS Chair, Division of Physics, Mathematics and Astronomy AT CALIFORNIA INSTITUTE OF TECHNOLOGY. DIRECTOR SHRINIVAS KULKARNI, IS PROFESSOR OF ASTRONOMY AND PLANETARY SCIENCE AND DIRECTOR OF OPTICAL OBSERVATORIES AT CALIFORNIA INSTITUTE OF TECHNOLOGY. SECRETARY ANN MARTIN IS ASSOCIATE GENERAL COUNSEL AT CALIFONIA INSTITUTE OF TECHNLOGY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINES 6 AND 7:</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS TMT HAS TWO MEMBERS UNIVERSITY OF CALIFORNIA (UC) AND CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH). Governance decisions of the organization including the appointment and number of directors, admission of new members and the terms of such admission are reserved to the members of the organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 11B:</FormAndLineReferenceDesc>
        <ExplanationTxt>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.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 12C:</FormAndLineReferenceDesc>
        <ExplanationTxt>CONFLICT OF INTEREST POLICY ON AN ANNUAL BASIS, TMT OBSERVATORY CORPORATION ("TMT") DISTRIBUTES CONFLICT OF INTEREST LETTERS WHICH THE BOARD MEMBERS, KEY EMPLOYEES AND HIGHEST COMPENSATED 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.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 15:</FormAndLineReferenceDesc>
        <ExplanationTxt>PROCESS OF DETERMINING COMPENSATION TMT has an executive compensation committee that annually reviews the compensation of the organizations key employees and highest compensated employees. The committees deliberations are documented. The committee does not review ALL employees' compensation, only key employees and highest compensated employees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 18:</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 WILL ALSO BE MADE AVAILABLE THROUGH GUIDESTAR.ORG. FORM 990, PART VI, LINE 19: GOVERNING DOCUMENTS AND POLICIES DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST. FORM 990, PART IX, LINE 24D: IN 2014, TMT ENTERED INTO AN AGREEMENT WITH TIO FOR THE PROVISION OF ADMINISTRATIVE AND LABOR SERVICES. THE PAYMENT FOR THESE SERVICES IS REFLECTED ON THIS LINE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>