GLAST LAT Project – Cost and Schedule Review November 3, 2004 AntiCoincidence Detector 1 GLAST Large Area GLAST Large Area Telescope: Telescope: Cost/Schedule Review November 3, 2004 AntiCoincidence Detector (ACD) Subsystem WBS: 4.1.6 David J. Thompson Thomas E. Johnson NASA Goddard Space Flight Center Subsystem Manager/Instrument Manager [email protected][email protected]Gamma-ray Large Gamma-ray Large Area Space Area Space Telescope Telescope
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GLAST Large Area Telescope: Cost/Schedule Review November 3, 2004
Gamma-ray Large Area Space Telescope. GLAST Large Area Telescope: Cost/Schedule Review November 3, 2004 AntiCoincidence Detector (ACD) Subsystem WBS: 4.1.6 David J. Thompson Thomas E. Johnson NASA Goddard Space Flight Center Subsystem Manager/Instrument Manager [email protected] - PowerPoint PPT Presentation
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GLAST LAT Project – Cost and Schedule Review November 3, 2004
AntiCoincidence Detector 1
GLAST Large Area Telescope:GLAST Large Area Telescope:Cost/Schedule ReviewNovember 3, 2004AntiCoincidence Detector (ACD) Subsystem WBS: 4.1.6
David J. ThompsonThomas E. JohnsonNASA Goddard Space Flight CenterSubsystem Manager/Instrument Manager
• Started flight PMT assembly. 16 units are completed, 10 are being coated, 20 additional units beginning assembly.
• Completed vibration testing of the Spare/Qual Electronics Chassis.
• Installed fiber ribbons on the flight structure.• Successfully completed all mechanical qualification testing of
the new PMT mounting design.• Completed Spare/Qual Electronics Chassis functional testing.• Made preparations to go to EMI testing.• Received 36 new PMTs from Hamamatsu.• Completed the assembly and functional testing of all (4)
single row Electronic Chassis (minus the PMTs)
GLAST LAT Project – Cost and Schedule Review November 3, 2004
– All variance is due to the PMTs.• 4.1.6.7 ACD I&T (-$243K cum, -$114K current)
– Technical issues have delayed progress. PMCS schedule has the ACD in TVAC this month. This will continue to get worse, unless rebaseline or CR action is taken.
• 4.1.6.B GSE (-$23K cum, $0K current)– ($23K) – Shipping container work being pushed out to
reduce manpower.
GLAST LAT Project – Cost and Schedule Review November 3, 2004