GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 1
PREP For CDR - April SchedulePREP For CDR - April Schedule
Wall Walk
GSFC Chart Flip
(Select)
Post CDR Presentation
Package
Final Wall WalkFinal Charts
Draft Due
Draft RFA
Response
Final RFA Response
Due
SE Wall Walk
DE Wall Walk
Select Charts Due
Final Charts Due
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 2
Road Map Schedule (I)Road Map Schedule (I)
• Subsystems Wall Walk (April 7-9)– Subsystem managers and tiger team
• System Engineering (SE) Wall Walk (April 10), including P&SA– Dick Horn, Dave Lung, Tom Leisgang, Rich Bielawski, Warren
Davis, Darren Marsh and members of the tiger team • Design Engineering (DE) Wall Walk (April 11), including
Manufacturing Process– Lowell Klaisner, Gunther Haller, Martin Nordby, Jeff Wang, Jerry
Clinton and members of the tiger team• SELECT Charts Due (April 15)
– Chart from DE, SE, IOC, SAS, Manufacturing Process, and P&SA are due to Dave Lung [email protected] by COB
• Draft Peer Review RFA Response Due (April 16)– Submit RFA Response to Peer Review Committee Chairman
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 3
Road Map Schedule (II)Road Map Schedule (II)
• GSFC Chart Flip - Select (April 17)– Selected charts (SE and DE) review with GSFC project office
• Final Draft CDR Charts Due (April 22)– Submit all CDR charts to Dave Lung [email protected] by
COB• Final CDR Charts Wall Walk (April 24-25)
– LAT IPO and tiger team• Final RFA Response Due (April 28)
– Submit RFA Response to Peer Review Committee Chairman• FINAL CDR CHARTS DUE (April 30)
– Submit all CDR Charts to Debbie Nicholson [email protected] for posting and repro
• Post CDR Presentation Package (May 2)
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 4
CDR Subsystem Status Summary CDR Subsystem Status Summary (template)(template)
• Final Design Established With Known Closure Plans For Design Trades– X- LAT Plate To Electronics ICD - ECD: 7/15/03– Xx/yy Drawings Complete, zz/yy Drawings Draft – ECD 8/15/03– EM Model Tests Complete - ECD: 7/28/03
• Internal & External Interfaces Established– Yy TBX’s with closure planned – ECD: 7/12/03
• Performance Analyses Show Compliance Including Sufficient Design Margin – Any Exceptions noted with recovery plans
• Qualification & Verification Plans In Place• Subsystem Risk Areas Identified And Mitigation Plans Established• Cost & Schedule Manageable
– $$ Variance with recovery plans established– XX Week Schedule Float to Flight Delivery Need Dates
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 5
RFA Response (template)RFA Response (template)
ID # Status RFA Description RFA Response/Closure Plan
Open/Closed
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 6
Electronics Risk Summary (template)Electronics Risk Summary (template)
ID # Risk Rank
Risk Description Risk Mitigation Mitigation Status
Elec/224 Moderate
•Flight-Software schedule is tight
• Depends on execution of LAT software development approach.
• Delays in incremental review process may impact cost & schedule
•Detailed software development plan, schedule and review points established (3/24/03).
• Early integration of software to target hardware via EM plan (Sept 03)
• Extensive use of test bed (Feb 04 and beyond)
• On track
Elec/221 Moderate
• Tower Power Supplies Cost & Schedule depend on bids received in response to RFP
• Proposals may exceed allocated schedule & funding
• Bids expected 3/25/03
• Assess schedule problem
• Determine cost impact to maintain schedule
• Negotiate with vendor to minimize impact
• Develop minimum impact re-plan & pursue CCB approval
• On track
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 7
GLAST Large Area Telescope:GLAST Large Area Telescope:
Subsystem WBS: 4.1.X
Subsystem ManagerOrganizationTitle
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 8
OverviewOverview
Section XX
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
Overview
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 9
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
Requirements
RequirementsRequirements
Section XX
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 10
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
Design
DesignDesign
Section XX
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 11
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
Verification Program
Verification ProgramVerification Program
Section XX
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 12
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
Fabrication Process
Fabrication ProcessFabrication Process
Section XX
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 13
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
Cost & Schedule
Cost and ScheduleCost and Schedule
Section XX
GLAST LAT Project CDR/CD3 Review May 12-16, 2003
Document: LAT-PR-01967 Section XX 14
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope
Risk & Summary
Risk and SummaryRisk and Summary
Section XX