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        <OtherCompensationAmt>317152</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>J G Santee</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>467575</ReportableCompFromOrgAmt>
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        <OtherCompensationAmt>127653</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>S M LEONTIS</PersonNm>
        <TitleTxt>Gen Mgr</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <ReportableCompFromOrgAmt>330937</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>194696</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>K Keating</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>418441</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>38748</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>L Schmidt</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>403202</ReportableCompFromOrgAmt>
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        <OtherCompensationAmt>49558</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>S K Steele</PersonNm>
        <TitleTxt>Exec Dir</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <ReportableCompFromOrgAmt>333535</ReportableCompFromOrgAmt>
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        <OtherCompensationAmt>101573</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>R Boston</PersonNm>
        <TitleTxt>Deputy CFO</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
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        <OtherCompensationAmt>48588</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>D A Reynard</PersonNm>
        <TitleTxt>Gen Mgr</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
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        <OtherCompensationAmt>51802</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>J W Ford</PersonNm>
        <TitleTxt>Prin Dir</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
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        <OtherCompensationAmt>104925</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>H Mitchell</PersonNm>
        <TitleTxt>Former Vice President</TitleTxt>
        <AverageHoursPerWeekRt>0.00</AverageHoursPerWeekRt>
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        <OtherCompensationAmt>19238</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>PJ Selva</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>T Hollis</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
        <AverageHoursPerWeekRt>40.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <ReportableCompFromOrgAmt>81329</ReportableCompFromOrgAmt>
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        <OtherCompensationAmt>11194</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>D W Thompson</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>L D James</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>J D Grant</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>D L Norquist</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>R A Rothrock</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>S J Helms</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>D J Newman</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CD Haney</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>S Preston</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>B Amin</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
        <AverageHoursPerWeekRt>2.00</AverageHoursPerWeekRt>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>D E Hastings</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>P J Zarodkiewicz</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RG Walden</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>J F Bridenstine</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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        <AverageHoursPerWeekRltdOrgRt>0.00</AverageHoursPerWeekRltdOrgRt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>D D Thompson</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>F Calvelli</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>W B Hurd</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>W A LaPlante</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>L R Urrutia-Varhall</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>S A Shinn</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <PersonNm>K Naeher</PersonNm>
        <TitleTxt>Vice President</TitleTxt>
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      <TotalCompGreaterThan150KInd>true</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Lee Revelation Technologies</BusinessNameLine1Txt>
          </BusinessName>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>1224 Topeka Drive</AddressLine1Txt>
            <CityNm>Saginaw</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>76131</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Technology Services</ServicesDesc>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Digital Intelligence Systems LLC</BusinessNameLine1Txt>
          </BusinessName>
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        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>PO Box 203678</AddressLine1Txt>
            <CityNm>Dallas</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75320</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Computer &amp; Software</ServicesDesc>
        <CompensationAmt>13348410</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Omniplex World Services Corp</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>13530 Dulles Technology Drive</AddressLine1Txt>
            <CityNm>Herndon</CityNm>
            <StateAbbreviationCd>VA</StateAbbreviationCd>
            <ZIPCd>20171</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Security Services</ServicesDesc>
        <CompensationAmt>11330495</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Applied Minds LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>2937 N Ontario Street</AddressLine1Txt>
            <CityNm>Burbank</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>91504</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Technology Services</ServicesDesc>
        <CompensationAmt>7163114</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>Protiviti Inc</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>12269 Collections Center Drive</AddressLine1Txt>
            <CityNm>Chicago</CityNm>
            <StateAbbreviationCd>IL</StateAbbreviationCd>
            <ZIPCd>60693</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>Technology Services</ServicesDesc>
        <CompensationAmt>3887009</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>90</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>23582</AllOtherContributionsAmt>
      <TotalContributionsAmt>23582</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Contract income</Desc>
        <BusinessCd>541700</BusinessCd>
        <TotalRevenueColumnAmt>1618209899</TotalRevenueColumnAmt>
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      </ProgramServiceRevenueGrp>
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      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>2308041</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2308041</RelatedOrExemptFuncIncomeAmt>
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      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetRentalIncomeOrLossGrp>
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        <ExplanationTxt>The Company was required by Fairfax County, VA to maintain the stream restoration area part of the conservation easement and has a 10 year maintenance contract in place. Annual maintenance began in 2010 with an estimated annual cost of $10,000. The forest area will be monitored at least annually.The conservation easement is on land developed in Chantilly, Virginia for use as a Corporate owned facility to replace leased facilities in the local area. In connection with development of the land, stream restoration and drainage control was constructed to meet national building and local codes. In addition 21.87 acres of forest has been set aside and not available for future development. Currently the audited Financial Statements reflect the land cost and development cost to date in the Balance Sheet. The revenue and expense statement includes approximately $10,000 of cost related to the conservation easement. Completion of the site with the initial building occupancy was in August 2014.</ExplanationTxt>
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        <ExplanationTxt>Senior leaders represent the Company as Board Members, Committee Chairs , and as Advisory Council Members to the non-profit organizations listed in Part II. The amounts granted are for sponsorship of the organizations mission events. The corporation maintains a corporate study assistance program and awards fellowships to qualified individuals who will contribute to the technical and business expertise of the corporation. Fellowships are normally awarded to regular full or part-time employees currently in good standing who have a minimum of two years employment with the corporation.The Aerospace University administers the Corporate Study Assistance Program. The number of fellowship awards each year depends on the availability of resources and the merit of the applications received.The Aerospace University advises management and employees on program guidelines, enrolls qualified candidates in the program, authorizes payments to universities and part-time fellows, and monitors compliance with this practice.A fellow in the Corporate Study Assistance Program:Submits appropriate receipts for actual incurred expenses, such as tuition, books, and mandatory fees to The Aerospace University for payment.Submits an official transcript to The Aerospace University within 60 days of the completion of each academic term.Reimburses the corporation for applicable tuition and textbook costs if the participant drops a course, receives a B-minus or less in any course, or receives less than satisfactory for dissertation research.Full-Time students receiving a stipend:Expend 20 or 24 hours of effort per workweek during the academic year and up to 40 hours during school recess and vacation periods. Pay is based on the employee's scheduled workweek. Annual reviews reflect both work and academic performance.</ExplanationTxt>
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        <PersonNm>R L Kendall</PersonNm>
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        <PersonNm>S J Isakowitz</PersonNm>
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        <PersonNm>S K Steele</PersonNm>
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        <PersonNm>T L Choy</PersonNm>
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        <PersonNm>T Pemberton</PersonNm>
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        <FormAndLineReferenceDesc>Part I, Line 1a: Relevant information in regards to selections on 1a.</FormAndLineReferenceDesc>
        <ExplanationTxt>Two first class travel tickets were purchased during the year in the amount of $7,963. These two tickets were purchased to meet schedule requirements and no other seats were available.Travel is authorized on an exception basis for the spouse of officers at various times during the year to attend corporate events. All spouse travel is included in income.Tax indemnification and gross-up payments are provided to all employees that have relocation expenses to cover the taxable portion of the relocation. Relocation gross-up and relocation expenses are included in income on Schedule J, Part II, column (Biii).</ExplanationTxt>
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        <TransactionDesc>Sponsorship</TransactionDesc>
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        <FormAndLineReferenceDesc>Schedule L, Part V Supplemental Information</FormAndLineReferenceDesc>
        <ExplanationTxt>Part IV Line 1 - D. Kamimoto is a family member of T.L. Choy (Vice President).Part IV Line 2 - C.A. Thompson is a family member of D.W. Thompson (Trustee).Part IV Line 3 - S.P. Whelan is a family member of M. Whelan (Vice President).Part IV Line 4 - J.M. Whelan is a family member of M. Whelan (Vice President).Part IV Line 5 - National Defense Industrial Association (NDIA) is a domestic organization that was paid a sponsorship of $16,757. The CEO of NDIA is D.L. Norquist (Trustee).</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 and all related schedules are completed by Aerospace's finance department and are reviewed in detail by the Vice President, Chief Financial Officer, and Treasurer (CFO) who signs the Form 990. Prior to filing the Form 990, the CFO reviews in detail the completed Form 990 with the Senior Vice President, General Counsel, Executive Vice President, and the President and Chief Executive Officer (CEO) of the Corporation. After the review with the President and CEO, the CFO reviews the Form 990 in detail with the Chair of the Audit Committee of the Board. The Chair of the Audit Committee reports on her review of the Form 990 to the Audit Committee and Board of Trustees. Copies of the Form 990 are provided to all members of the Board of Trustees prior to filing.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The corporation complies with the Department of Defense (DoD) Mandatory Disclosure Rules, including required disclosures to the DoD Inspector General, for (1) violations of federal criminal laws relating to fraud, conflicts of interest, bribery, and gratuities; (2) violations of the False Claims Act; and (3) misconduct in connection with the award, performance, or close out of government contracts.Employees must certify that they have read, understand, and will comply with the corporate practice as a condition of employment by signing a Certification of Compliance annually.Employees also certify to the corporation that he/she has no holdings or relationships that might constitute or appear to constitute a conflict of interest by responding to an on-line Conflict of Interest Certification. Employees must list the business and financial interest and relationships for those organizations identified on the corporation's Conflict of Interest Listing. Such certification is required annually or whenever a change in the individual's business or financial interest or relationships makes it appropriate.Employees may not retain any holdings in any organization with which he/she works on a day-to-day basis.The Office of the General Counsel issues, periodically, a list of organizations that includes principal associate contractors of the Air Force Space Systems Command and other U.S. Government organizations that interface with the company on a regular basis. This list is not all-inclusive, but helps to identify areas of possible conflict of interest.The Office of the General Counsel reviews all disclosure forms and advises management on any conflicts of interest.Management, after a disclosure review, decides either that some action must be taken or that no conflict exists and no further action is required. Management may determine that certain actions are required, such as a change in work assignment, divestiture in a conflicting interest, or the establishment of a "blind trust." Management's decisions in those matters are final.Certifications, disclosures, and subsequent decisions are made available to audit agencies and duly authorized persons on a need-to-know basis as approved by management.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Aerospace Corporation plays a critical role in assuring mission success for National Security Space programs, which are a $50 billion enterprise on an annual basis. Aerospace's senior executives are highly experienced leaders in their technical fields with enormous accountability in performing this vital mission assurance role. Their compensation is reviewed and approved annually by the corporation's Board of Trustees, whose members include leaders with experience in government, the military, and private industry.The Compensation and Personnel Committee (the "Committee") of the Board of Trustees (the "Board") discharges the Board's responsibilities relating to compensation of the President and CEO, and other executive officers, including approving, individually, the compensation of each such officer.The Committee reviews and recommends to the Board compensation plans, pension and benefit programs for employees generally; and to review all modifications to such plans other than such modifications specifically delegated by the Board to management from time to time.The Board of Trustees has established an annual bonus and incentive compensation plan for corporate officers, general managers, and principal directors based on corporate and individual goals established at the beginning of each fiscal year. At the end of each fiscal year, the Committee reviews corporate and individual performance and recommends to the Board the amount of bonus and incentive compensation, if any, to be paid for the prior year's performance. Bonus payments must be approved by the Board. These amounts are included in Bonus &amp; incentive compensation on Schedule J, Part II, column (B)(ii).The Committee reviews the Board of Trustees compensation.The Committee meets not less frequently than twice each year to coincide with the annual and semiannual meetings of the Board and at other times to coincide with regular meetings of the board.The Committee may request that members of management or outside consultants and advisors of the Committee be present to assist the Committee in performing its duties.A written report of the actions taken at each meeting will be kept filed with the proceedings of the meetings of the full Board.The Committee process above was last undertaken for Fiscal Year 2024.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 governing documents, conflict of interest policy and audited financial statements are available upon request to the CFO, Vice President and Treasurer. Requests can be in person at any of our operating offices, by mail, facsimile or electronic mail. The documents are available for inspection at our Aerospace Technical Center at 2310 E El Segundo Blvd in El Segundo, California. Copies will be made upon request or electronic media will be provided at no cost to the requestor for the last three years.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Change to Corporate Equity = $31925000</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Financial Statements Rounding Adjustment = $118</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12b</FormAndLineReferenceDesc>
        <ExplanationTxt>Trustees, officers and key employees are required to annually disclose interests that could give rise to conflicts of interest.The office of General Counsel sends a questionaire to all trustees and reviews all disclosure forms and advises management on any conflicts of interest.The CFO sends out questionaires to all officers and key employees. The CFO reviews all disclosure forms and advises senior management of any conflict that should be reported on Form 990.Officers and key employees also participate in the monitoring noted under 12c.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Sec A, Line 1a/b</FormAndLineReferenceDesc>
        <ExplanationTxt>The President and CEO of the Corporation is a member of the Board of Trustees, ex officio, with full voting power during their term of office as President and CEO. The President and CEO is not independent as they are compensated as an officer. The President and CEO excuses themselves from votes which may result in a conflict of interest.L.D. James (Trustee) was approved by the Board of Trustees to conduct an independent review of the Company's mission assurance process. During the tax year, the amount he received for his services as an independent contractor was $32,370. The portion of this amount received during the 2024 calendar year was $22,830 and has been included as part of his compensation disclosed in Part VII.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Accumulated change to Corporate Equity increased by $31,925,118 due to increase in the interest rate used to value the liabilities of the Company's retirement plans and return on Assets.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Schedule A, Section A &amp; B</FormAndLineReferenceDesc>
        <ExplanationTxt>Amounts used are rounded to the nearest thousand as the software does not support the full amount.</ExplanationTxt>
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        <ExplanationTxt>The Aerospace Corporation UK Limited (previously VAEROS Limited) is a wholly-owned subsidiary of The Aerospace Corporation and organized as a UK limited company on July 9, 2015, Company Number 9678041. During 2015, 2016, 2017, 2018, 2019 and 2020 The Aerospace Corporation UK Limited had no business, and no employees, and was effectively dormant, and not active.The Aerospace Corporation UK Limited started business activities in March 2021.</ExplanationTxt>
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