GLAST Mission - LAT Project DOE/NASA Review, March 31, 2004 rev. 13 1 GLAST Mission GLAST Mission Large Area Telescope Large Area Telescope Project Project Lowell A. Klaisner, Project Manager Stanford Linear Accelerator Center [email protected]Gamma-ray Large Gamma-ray Large Area Space Area Space Telescope Telescope Project Status Project Status March 31, 2004 March 31, 2004
Gamma-ray Large Area Space Telescope. Project Status March 31, 2004. GLAST Mission Large Area Telescope Project Lowell A. Klaisner, Project Manager Stanford Linear Accelerator Center [email protected]. Introduction. - PowerPoint PPT Presentation
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GLAST Mission - LAT Project DOE/NASA Review, March 31, 2004
rev. 13 1
GLAST MissionGLAST MissionLarge Area Telescope ProjectLarge Area Telescope Project
Lowell A. Klaisner, Project ManagerStanford Linear Accelerator [email protected]
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
GLAST Mission - LAT Project DOE/NASA Review, March 31, 2004
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IntroductionIntroduction
• The transition to the first flight units has had the expected challenges and impacts– The LAT team is effectively stepping up to solve problems
• Producing flight hardware– First tower integrated with the grid this fiscal year– Tight, success-oriented schedule
• We will see risk to the instrument delivery date until we have established a production rate history – Plan has 9 weeks float to delivery for observatory
integration• Overall project contingency is OK
– Project is 65% complete– Contingency is 29% of cost to go
• Funding in the current fiscal year is an issue– All funding for FY04 is allocated
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•Objective: Larger field of view (FOV), higher sensitivity, and broader energy detection range than any previously flown gamma-ray mission.
•Mission Duration: 5 yrs (10 yr Goal)•Orbit: 565 km Circular, 28.5° Inclination•Launch Date: February 2007•Launch Vehicle: Delta 2920H-10•Launch Site: Kennedy Space Center
GLAST MISSION SUMMARYGLAST MISSION SUMMARY
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LAT
GBM NaI Sensors
GBM BGO Sensors
+Z
+X +Y
LAT Radiators
GLAST Observatory
Solar Array
Spacecraft
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Instrument StructureInstrument Structure
Anti Coincidence Detector
16 Tracker Modules
Grid
16 Calorimeter Modules
Electronics Modules
Radiators
Mass 3000 KgPower 650 Watts
GLAST Mission - LAT Project DOE/NASA Review, March 31, 2004
Funding $136,830Budget at complete $124,383Work Performed $80,742Cost to Go $43,641Percent complete 65%Contingency $12,447Contingency/ Cost to Go 29%
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GLAST Mission Office Support in FY04GLAST Mission Office Support in FY04
• The GLAST mission management and the LAT project management identified areas were additional manpower would help assure that the project meet its goals. The mission office added funds to the project for this additional staff.
– Integration and Test Staff $ 523K– Tracker Staff $ 738K– Performance and Safety Assurance $ 973K– Flight Software Staff $ 747K
Total $2,981K
• In addition, the mission office added funds to support the costs associated with the following CCB actions:
– ACD Mechanical Materials and Support $ 195K– ACD Photomultiplier Anomaly Resolution $ 299K– ACD Base Electronics Assembly $ 222K– ISIS Scope Change $ 94K
Total $ 810KTotal funds added $3,791K
• Also, the Mission Office has provided technical support– Thermal Engineering– EMI/EMC Engineering– Tracker and ACD Management– Mechanical Analysis
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History of the Budget at Complete Since RebaselineHistory of the Budget at Complete Since Rebaseline
Budget at Complete
95,000
100,000
105,000
110,000
115,000
120,000
125,000
130,000
Jul-0
3
Aug
-03
Sep
-03
Oct
-03
Nov
-03
Dec
-03
Jan-
04
Feb
-04
Mar
-04
(Pro
ject
ed)
Month
K$
BAC BAC w/o Manpower increase & MPS change
Delta Budget at Complete
-2,000
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
Month
K$
With 0 0 0 0 11,767 0 3,940 939 -241
Without 0 0 0 0 11,767 0 959 939 569
Jul-03Aug-
03Sep-
03Oct-03 Nov-03
Dec-03
Jan-04Feb-04
Mar-04
(Proje
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BAC projections to end of projectBAC projections to end of project
• Contingency available $12,447K– 29% of cost to go
• Allocation of project contingency since rebaselining
– Between the end of July 03 and the end of February 04
• Earned value $24,513K• Allocation of cont. $ 4,879K• Percentage 20%
• Rate of Allocation over the last 7 months– $697K per month– Projection at this rate for the remaining 16
months $11,152K
• Cost risk will decline as project matures
May-02, $99,973
Mar-03, $107,482
Jul-03, $119,504
Feb-04, $124,383
May-02, $99,973
Mar-03, $107,482
Jul-03, $119,504
Feb-04, $124,383
Jul-05, $133,111
Jul-05, $135,535
$90,000
$95,000
$100,000
$105,000
$110,000
$115,000
$120,000
$125,000
$130,000
$135,000
$140,000
BAC (20%)
BAC $697 per month
Rebaseline
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FY04 Cash FlowFY04 Cash Flow
• Planned costs March through September $29,108K– Project additional funds needed on FY04
• At $697K per month $ 4,182K
• At 20 % of costs (recent experience) $ 5,821K• At 29% of costs (rate for the remainder) $ 8,441K
• Mitigation– Move activities into FY05– $5,000 Bridge available from Stanford University– Mission office move NASA funding forward, if available
Costs Funding DifferenceAs of February Report $111,024 $110,600 ($424)March Actions* $810 $1,310 $500Transfer of MPS Tax ($801) ($801) $0Current projection $111,033 $111,109 $76
At the end of FY04
* Mission office moved $500K of LAT funding from FY 05 to FY04
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Potential LiensPotential Liens
FY04Tracker Flight Nanoconnectors $95Tracker Bias Circuit Redesign/Refab $66Tracker MCMs and Source Inspection $348DAQ Additional ACTEL Parts, FPGAs $253DAQ Front End Simulator $329DAQ Global Trigger/GASU Board Wiring $260DAQ TEM Engineering Models $400Lockheed Martin Phase II Increase $656ACD ASIC delay $400Additional MGSE items for I&T $132Extend QA support for Tracker $90Tracker GTRC v7 cycle $160Calorimeter increased TVAC Testing $50Japanese Funding TBD
Total $3,239
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LAT ScheduleLAT Schedule
TKR A 07/02/04
TKR 14 12/21/04
ACD 11/03/04
07/28/04 01/25/05 01/03/05
CAL A 07/09/04
CAL 14 12/2/04
DAQ 11/01/04
08/12/04 07/12/04 01/11/05 01/21/0508/13/04
TEM/PS A 05/12/04
TEM/PS 14 10/05/04
X-LAT 08/12/04
08/02/04 01/07/05 08/12/04 02/18/05
GRID Assembly 06/11/04
Install Twrs A&B
8 wks
2 Tower CPT
3 wks
Install Twrs 1-13
13 wks
Install Tower 14
1 wk
Install Gbl Items 6 wks
07/22/04 01/04/05 01/10/0501/28/05 02/04/05
02/23/0503/18/05
SystemTest
11 wks
Float 9 wks
Ship LAT1 wk
Enviro Test
15 wks
Float 4 wks
LAT RFI
Observ. Integration
Launch 02/07
5 WeeksDates
Nov, 03
Current
Feb. 2004 Data
Mission
12/15/04
Color CodeSubsystem
I & T
Test
Review
07/14/05
Review
12/01/05
Pre-Test / CD-4 Pre-Ship
10/31/0510/31/05
05/11/0506/07/05
FSW Complete 12/13/04
FSW Formal
Test 02/18/05
GLAST Mission - LAT Project DOE/NASA Review, March 31, 2004
Ready for CD-4 and Pre-Environmental Test Review6/7/05 (0)
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Threats to ScheduleThreats to Schedule
• Path to Integration and Test of Tower A– Completing detailed documentation– Getting fabrication contracts in place– Anomaly in qualification testing
• Path to Integration and Test of the complete instrument– Achieving planned production rates– Execution of I&T plans– Rapid response to anomalies
• Path to Environmental Test (CD-4)– Anomalies requiring de-integration– Rapid analysis of and response to anomalies
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Level 1 and Level 2 MilestonesLevel 1 and Level 2 Milestones
Milestone Plan Float Level 1 Milestones – DOE/NASA Joint Oversight Group DOE Critical Decision (CD) 0 Approval June 25, 2001 June 25, 2001 Actual CD-1 Approval July 23, 2002 July 23, 2002 Actual CD-2 Approval November 8, 2002 November 8, 2002 Actual CD-3 Approval August 31, 2003 August 31, 2003 Actual Flight Grid Complete September 15, 2004 July 22, 2004 8 weeks CD-4 Approval March 15, 2006 June 7, 2005* 40 weeks Level 2 Milestones – Federal Project Managers Launch Balloon Flight August 1, 2001 August 1, 2001 Actual Instrument Preliminary Design Review January 8, 2002 January 8, 2002 Actual Instrument Critical Design Review May 16, 2003 May 16, 2003 Actual Start LAT Integration August 24, 2004 August 2, 2004 3 weeks Pre Environmental Test Review July 14, 2005 June 7, 2005 5 weeks Instrument Pre-Ship Review December 1, 2005 October 1, 2005 9 weeks * The CD-4 Review is planned for June 7, 2005 and the CD-4 Approval will occur after validation by DOE.
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Technical StatusTechnical Status
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Closed IssuesClosed Issues
• CDR/CD-3– Loss of CNES funding
• Successfully transferred work to the US• Funded at the rebaseline
– ASICs• All flight ASICs are delivered• No unresolved problems
– Production planning readiness workshop held in Italy
– Thermal-Vacuum test of the engineering model complete
– Flight production underway
• Silicon ladders (30% complete), Multi Chip Modules, mid-trays, and bottom tray components
– Need to complete the flight documentation and testing
• Mechanical (SLAC)
– Flight GRID being machined
• Thermal (SLAC)
– Flight heat pipes in fabrication (Lockheed Martin)
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Subsystem Status 2Subsystem Status 2
• Calorimeter (NRL, IN2P3)– Flight production well underway
• 80% of CsI crystals in hand• 25% of CDEs have been manufactured• Flight ASICs (~12,000) have been tested• All machined parts and 3 flight structures are complete