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GLAST LAT Project DOE/NASA Review, March 31, 2004
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GLAST Large Area Telescope:GLAST Large Area Telescope:
Lowell A. KlaisnerStanford Linear Accelerator CenterProject Manager
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope SummarySummary
April 1, 2004April 1, 2004
GLAST LAT Project DOE/NASA Review, March 31, 2004
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MCM Burn-In & Test
Apr 29, 2004
Tower Assembly & Test
Jul 7, 2004
Tower ARFI
Aug 18, 2004
Working Critical Path, 3/31/04Working Critical Path, 3/31/04
Tower 14RFI
Feb 15, 2005
LAT Assembly Complete
Apr 8, 2005
System Test Complete
Jun 28, 2005
Environmental Test Complete
November 12 2005
LATRFI
November 12, 2005
Pre-ship/CD-4 Review
June 29, 2005
This critical path based on Tracker estimates presented March 31, 2004.
The schedule after Tower A will be worked to mitigate the resulting delay in LAT RFI.
GLAST LAT Project DOE/NASA Review, March 31, 2004
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Mitigating late module arrivalMitigating late module arrival
• The project is focusing on integration and test of the first tower. The following are areas to work as we learn more about actual performance– I&T can use the additional time for more training and
testing to reduce risk in integration and improve productivity.
– Some part of System Test could be moved earlier and tested with a partial LAT configuration
– System Test Period is 2 Shift/5 Days, could be up to 3 Shift/7 Days
– Increase the production rate of modules by working second shifts, etc.
– Investigate compressing the environmental test schedule from the present 15 weeks
GLAST LAT Project DOE/NASA Review, March 31, 2004
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SummarySummary
• The LAT is a challenging instrument
• Significant technical progress -- no major issues outstanding
• Producing flight hardware
• Overall project funding is adequate if stay on schedule
• Funding in the current fiscal year is an issue being worked
• Schedule is challenging
– Focusing on installation of the first flight tower in the grid
– Mitigating delays as they occur
• Delay in completing Grid design – Qualify 2nd grid
• Delay in arrival of CAL ASICs -- Load parts before qualification
• Tracker delay due to test anomalies – Proceed with fabrication before testing is complete
• Project management needs to be proactive in identifying plans to mitigate potential future schedule delays
• A strong, talented staff that is committed to delivering this instrument and doing the science
GLAST LAT Project DOE/NASA Review, March 31, 2004
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GLAST Feb 2007 launch
