1. Overview Cost to Complete
Gamma-ray Large Area Space Telescope
GLAST Large Area Telescope:
Lowell A. Klaisner
Stanford Linear Accelerator Center
Project Manager
Overview Cost to Complete

2. Rebaseline schedule Subsystem managers input Done
Review Cost to Complete
Subsystem managers meeting November 17, 2004
Materials ready for DOE November 24, 2004
GLAST Mission Office Monthly December 2, 2004
LAT JOG Telecon December 6, 2004
LAT Baseline review at DOE Headquarters December 17, 2004
LAT JOG at NASA-HQ TBD

3. Schedule – Rebaseline July, 2003
TKR A/B
4/15/04 | 7/14/04
TKR 13/14
10/21/04 | 12/1/04
ACD
9/21/04 | 12/15/04
Critical Path
Plan | Late
CAL A/B
5/20/04 | 7/14/04
CAL 13/14
10/21/04 | 12/1/04
DAQ
9/10/04 | 12/15/04
TEM A/B
5/20/04 | 7/14/04
TEM 13/14
10/21/04 | 12/1/04
X-LAT
8/2/04 | 12/15/04
Install
Tower A/B
8 wk
Install
Towers 1-12
12 wk
Install
Towers 13/14
2 wk
Install
Global items
6wk
GRID Assembly
5/20/04 | 7/14/04
4 wk
FLOAT
5/20/04 | 7/14/04
10/28/04 | 12/1/04
12/15/04
1/27/05 | 4/7/05
5/5/05 | 7/14/05
7/14/05
11/3/05 | 12/1/05
System
Test
14 wk
Environmental
Testing
15 wk
10 wk
FLOAT
Pre-test Review
Ship LAT
1 wk
4 wk
FLOAT
Pre-ship Review
LAT RFI
12/1/05
CD-4 Review
Fabrication
Commissioning

4. DRAFT LAT Schedule – No float

5. Slip in the 16 months since rebaseline

6. DRAFT October Plan

7. Draft Cost Estimate

8. Summary of existing inputs
Increase in fabrication phase funding $ 24 Million
New fabrication phase funding $160 Million
New cost to complete as of September 30 $ 41 Million
New contingency $ 5.2 Million
Assumed schedule
Last Tracker module complete May 2005
Ship LAT to NRL September 2005
Ship LAT to Observatory Integration January 2006
2 months float March 2006
Launch May 2007
Cost risk is primarily schedule risk

9. Issues Can not let subsystem schedules slip
Each subsystem needs to execute its own plan
Even if off the critical path, each slip is causing major cost growth
Need to control costs
Can not continue to process CCB actions for costs that have already occurred
Too many surprises
Must ramp down staffing
Descope options

10. Goals for this meeting
Each subsystem manager should understand what is required to update his cost estimate and the supporting text
Develop a cost to complete for the instrument to be used as the basis for the rebaseline
Develop a schedule for shipping the instrument to NRL
Needs a credible 2 months of float in January when the rebaseline is incorporated