1. LAT-MD-0864501 August 2006 LAT Requirement Sell-off Package GLAST Large Area Telescope Gamma-ray Large Area Space Telescope GLAST Large Area Telescope LAT Level Requirement Sell-off Package for LVP40/LPS487 – LAT Average Power Consumed Requirement Owner: Rick Bright Approval Date: September 14, 2006 Approved By: Graf, Melton, Baun LAT Docs No:LAT-MD-08645

2. LAT-MD-0864501 August 2006 LAT Requirement Sell-off Package 2 LVP40/LPS487 – LAT Average Power Consumed (1 of 2)  Requirement: On a per orbit average, the LAT shall consume less than 650 W. Note: This includes operational and survival heater power in any combination.  Verification Method: T5  Verification Plan: At the end of test cases LAT001 - LAT Configuration 1 Power On and LAT002 - LAT Configuration 2 Power On, (see LAT Performance and Operations Test Plan, LAT-MD-02730, paragraphs 6.7.2.1.1 and 6.7.2.1.2 respectively), when the LAT has been completely powered, measure the total average input power to the Instrument at TV Hot and TV Cold. Utilizing this data and knowledge of the Observatory orbit, determine LAT power consumption meets this requirement. Test results will be analyzed and documented in the LAT Power Report, (LAT-TD-04701).

3. LAT-MD-0864501 August 2006 LAT Requirement Sell-off Package 3 LVP40/LPS487 – LAT Average Power Consumed (2 of 2)  Test Script Run Info: –Hot Plateau Configuration 1 Test Case LAT851 Run ID 77009073 –Hot Plateau Configuration 2 Test Case LAT852 Run ID 77009058 –Cold Plateau Configuration 1 Test Case LAT851 Run ID 77009238 –Cold Plateau Configuration 2 Test Case LAT852 Run ID 77009226  Worst Case Measured Data: 580.4 W  Margin: 69.6 W  Test/Analysis Summary: On a per orbit average, the LAT consumes less than 650 W. This includes operational and survival heater power in any combination. The 90 minute average LAT measured power consumption with maximum bus voltage is 580.4 W.  Analysis Report/Test Report Doc #(s): –LAT Power Status Report, LAT-TD-04701  Compliance Statement: LAT Complies  NCRs/JIRAs: None