1. GLAST LAT ProjectSubsystem Managers Face to Face, November 17, 2004 1 GLAST Large Area Telescope: Darren Marsh Stanford Linear Accelerator Center Performance & Safety Assurance Manager Marsh@slac.stanford.edu 650-926-4577 Gamma-ray Large Area Space Telescope Performance & Safety Assurance Cost to Complete

2. GLAST LAT ProjectSubsystem Managers Face to Face, November 17, 2004 2 Cost Estimate 10/31/04 Baseline Cost Estimate –$2,935K Performance Assurance activities performed on a level of effort basis Cost estimate covered quality engineering and inspection staff through 1/31/05 –Lien identified for $552K for staff funding through 7/14/05 11/17/04 Rebaseline Plan –$3,894K ($959K Delta) Change in LAT delivery date to NRL 9/28/05 Schedule delays of subsystem hardware deliveries Quality problems associated with critical components and assemblies

3. GLAST LAT ProjectSubsystem Managers Face to Face, November 17, 2004 3 Change Detail Quality Engineering (+$594K) –Addition of Software Quality Engineer (.5 FTE) through end of 9/28/05 –Assigned QE to address MCM workmanship issues and support Tracker Engineering staff on quality issues Source inspection (+$122K) –Extension of Tracker MCM and DAQ box assembly source inspection personnel to reflect completion of work –Dedicated individual to Tracker flex cable fabrication activities due to supplier problems Quality Inspectors (+159K) –Internal rework procedure development and inspections –Continued inspections of Tracker and DAQ parts –DAQ harness inspection at vendor facility Management, calibration and travel (+$84K)

4. GLAST LAT ProjectSubsystem Managers Face to Face, November 17, 2004 4 Increased Cost Summary Increased Cost Summary