Summary April 1, 2004

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SummaryApril 1, 2004
GLAST Large Area Telescope Lowell A.
Klaisner Stanford Linear Accelerator
Center Project Manager Klaisner_at_slac.stanford.edu
650-926-2726
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Working Critical Path, 3/31/04
MCM Burn-In Test Apr 29, 2004
Tower Assembly Test Jul 7, 2004
Tower A RFI Aug 18, 2004
Tower 14 RFI Feb 15, 2005
LAT Assembly Complete Apr 8, 2005
System Test Complete Jun 28, 2005
Environmental Test Complete November 12 2005
LAT RFI 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.
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Mitigating 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
• IT 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

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Summary

• 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

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GLAST Feb 2007 launch