BASELINE CHANGE PROPOSAL (BCP)

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1) BCP Number: LAT – 002 2) BCP Title: Project Rebaseline 3) Budget Number: MIE # KA050102-EQU01CC 4) Title: Large Area Telescope (LAT) 5) Date Received (Field Office): Date Received (Program Office): 6) Change Designation: Routine

7) BCP Level: Level 0 [ ] Level 2 [ ]

Level 1 [ X ] Level 3 [ ]

8) Directed Change? Yes [ X ] No [ ]

9) Program: SC-20, Office of High Energy Physics

10) Point of Contact: Evaristo J. Valle 12) FAX: (650) 926-3210 11) Phone: (650) 926-4552 13) Location: SSO 14) Change Description: This BCP requests a re-scoping of the DOE LAT project and an increase to the DOE TEC from $42 Million (M) to $45M. An additional $3M in DOE funding is requested with this BCP. This change is consistent with the Administration’s action to limit DOE’s exposure to further cost growth in the LAT project by limiting the DOE funding contribution to no more than $45M. This financial limitation requires that the remaining DOE contribution for the LAT fabrication be limited to a well defined scope of work in the form of a deliverable. The value of this deliverable is $5.34M, which is equal to $2.34M, the amount of unspent funding as of January 31, 2005, plus $3M in new funding requested in this BCP. There are no changes to the DOE schedule milestones; however, the DOE Critical Decision 4 “End of Fabrication” will be redefined to apply only to the DOE deliverable and renamed Critical Decision 4 “DOE Project Closeout”. 15) Change Justification: (If Directed Change specify authority and documentation) The overall LAT project is to fabricate the primary instrument for NASA’s Gamma-ray Large Area Space Telescope (GLAST) Mission and is a collaboration between DOE, NASA and four foreign partners. The current DOE baseline TEC of $42M was approved in July 2003. Since then, the overall LAT project entered into its fabrication phase and encountered various technical problems. While acceptable solutions have been identified additional funds are required. This BCP requests the DOE contribution to the overall LAT project be increased by $3M to a total of $45M. Because of the decision to limit DOE’s funding to no more than $45M, the nature of the DOE/NASA joint agency management has changed. NASA has agreed to assume the risk associated with the completion of the overall LAT project. As of the end of January 2005, $39.66M of DOE’s contribution has been costed by the overall LAT project. This BCP proposes that the Electronics, Data Acquisition (DAQ), Flight Hardware and Systems Engineering subsystems, which will cost the $5.34M in remaining available DOE funding, be defined as the remaining deliverables. These subsystems provide essential electronic hardware needed for the capturing of experimental data, and coordination and tracking of LAT instrument requirements, subsystem designs, tests, and test interfaces. Once the DOE deliverables have been fabricated and tested to demonstrate full functionality and compliance with the LAT Project Integration and Testing subsystem team requirements, DOE’s commitment to the completion of the LAT instrument will be fulfilled, allowing the closeout of the DOE LAT project. A re-baseline review of the DOE LAT project was held on February 18, 2005, at the DOE Germantown facility. The review committee looked at the reasonableness of the BCP, completeness of the proposed solutions, and how the new DOE deliverable fits and supports the scope of the overall LAT project. The committee recognized the change to the overall agency management and asked the LAT project for more details regarding DOE’s responsibility and the remaining deliverable within the overall LAT project. Based on further iterations of the documentation, the committee supported the re-baseline plan for the DOE LAT project, the newly established DOE deliverable and recommended that DOE approve the BCP.

BASELINE CHANGE PROPOSAL (BCP)

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BCP Number: LAT – 002 BCP Title: Project Rebaseline

16) Impact of Non-Approval: It is in the best interest of the overall LAT project that this BCP be approved so the currently proposed baseline can be implemented and the DOE deliverable established. If this BCP is not approved, the project will have limited DOE funding available after April 2005, causing a halt to fabrication and a day-by-day schedule slip. This will increase the overall LAT project’s total estimated cost. The overall LAT project is currently dependent upon receipt of the additional $3M in DOE funding during the April financial plan. If the BCP is not approved, the schedule delays will cost the overall LAT project approximately an additional $2 million per month, and the overall GLAST Mission an additional $5 million per month. 17) Impact on Cost Baseline:

Baseline (As of December 2004)

Proposed

Change

Estimate without contingency $ 40.95M $ 43.60M $ 2.65M Contingency 1.05M 1.40M +0.35M TEC $ 42.00M $ 45.00M $ 3.00M 18) Impact on Funding Profile (BA): Approval of this Baseline Change Proposal will require an increase of $3M in MIE funds in FY 2005. The changes to the funding profile are shown below: Prior FY FY03 FY04 FY05 Total Baseline ($M) DOE TEC 16.8 8.9 7.9 8.4 42.0 Proposed ($M) DOE TEC 16.8 8.9 7.9 11.4* 45.0 Change in DOE TEC ($M) 3.0 3.0 *Request for this funding change will be submitted to SC-2 at the ESAAB for approval. 19) Explanation of Impact on Cost and Funding Baseline: Spending against the current $42M baseline involves work in most subsystems (as shown in the table below) and is associated with direct fabrication of the entire LAT instrument. Upon approval of the BCP, the proposed $45M baseline will be implemented. The impact to cost and funding is to provide the remaining funding to only the two subsystems that form the rest of the DOE deliverable, as shown in the table. The total amount of funding scheduled to be costed in the new baseline is $5.34M. The remaining DOE funding will be used towards deliverables in two subsystems: 4.1.2 System Engineering and 4.1.7 Electronics, DAQ, Flight Software.

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BCP Number: LAT – 002 BCP Title: Project Rebaseline

19) Explanation of Impact on Cost and Funding Baseline (Continued) : The DOE cost & funding has changed to:

WBS Task Description Proposed TEC Costs + Commit thru 1/31/05 Cost to Complete

4.1.1 Instrument Management $6.21 $6.21 4.1.2 System Engineering $3.41 $2.53 $0.88 4.1.4 Tracker $8.92 $8.92 4.1.5 Calorimeter $0.36 $0.36 4.1.6 Anticoincidence Detector $0.32 $0.32 4.1.7 Electronics, DAQ, Flight Software $12.29 $9.23 $3.06 4.1.8 Mechanical Systems $7.04 $7.04 4.1.9 Integration & Test $3.80 $3.80 4.1.A Performance & Safety Assurance $1.22 $1.22 4.1.B Instrument Science Operations Center $0.03 $0.03 4.1.C Education & Public Outreach $0.00 $0.00 4.1.D Science Analysis Software $0.00 $0.00 4.1.E Suborbital Flight Test $0.00 $0.00

Total BAC $43.60 $39.66 $3.94 Contingency $1.40 $1.40 % Contingency (cost-to-complete) 36% Total Estimated Cost ($M) $45.00 $5.34 As of January 31, 2005 Budget at Completion $42.00 Cost plus commitments $39.66 Remaining budget $2.34

20) Impact on Schedule Baseline: No change in the date of Critical Decision 4 (CD-4) “End of Fabrication” approval milestone, but it has been redefined as the CD-4 “DOE Project Closeout” milestone. Milestone (No. and Description)

Baseline (Month/Year) Proposed (Month/Year) Change

CD-4 3/15/06 3/15/06 0 months

21) Explanation of Impact on Schedule Baseline: The newly defined DOE schedule baseline completion date is March 15, 2006 and is met upon completion of DOE deliverables but CD-4 will no longer be defined as “End of Fabrication” and will now be defined as “Project Closeout.”

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BCP Number: LAT – 002 BCP Title: Project Rebaseline

22) Impact on Scope Baseline: The impact is a change to the current DOE scope from a share in all work associated with the direct fabrication of the LAT instrument to a deliverable with only a remaining work scope contained in subsystems 4.1.2 System Engineering and 4.1.7 Electronics, DAQ, Flight Software. This DOE deliverable has an estimated cost equal to the cost-to-complete of $5.34M. The financial risk of the deliverable is limited to that of its scope and is well contained within the cost-to-complete of $5.34M and a CD-4 “DOE Project Closeout” milestone date of March 15, 2006.

23) Explanation of Impact on Scope Baseline: This proposal clearly defines the deliverable’s scope of work that DOE will fund directly. This new scope of work, in the form of a DOE deliverable, is consistent with NASA’s plans to fund the rest of the instrument and makes a key contribution to the success of the mission. The scope of the DOE TEC of $45M with cost-to-complete of $5.34M will fund the deliverables scope in accordance with the table listed in section 19. 24) Other Impacts (Health, Safety, Environment, etc.) None

25) Interim or Corrective Actions: The corrective actions are to redefine the project scope, have PARS report against the newly approved DOE TEC of $45M, update the Project Execution Plan to reflect approved changes per this BCP, and for the Federal Project Director to provide weekly written progress reports to the Acquisition Executive and monthly reports to SC-2. At the present, PARS is reported against the TEC of the overall LAT Project. Upon approval of this BCP the DOE re-baseline will be implemented and all future reporting starting with February will be reported against the newly approved DOE TEC of $45M. The re-baselining of the DOE scope will also set the variances reported in PARS to zero resulting in the DOE deliverable being assessed as “Green”. The Federal Project Director will be reporting weekly progress of the DOE deliverable to the Office of High Energy Physics. The multiple components that make up the DOE deliverable will be tracked using a weekly production and performance plan. Assessment in terms of cost and schedule will be performed by the Federal Project Director against weekly production plans. This will ensure that the DOE deliverable is completed with the DOE TEC of $45M and that CD-4 “DOE Project Close-out” takes place on or before March 15, 2006.

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Appendix

Baseline Change Proposal

LAT-002

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Remaining DOE Deliverables The following is a statement of work for each of the elements included in the remaining DOE project. The M&S detail is listed in a separate table. 4.1.2 System Engineering $884K = $884K Labor + $0 M&S Coordination & tracking of LAT instrument requirements, subsystem designs, tests, and test interfaces. Functional and performance testing of LAT not covered in subsystem plans; includes system trades & audits, concept of operations, and development of system metrics. Audit efforts related to maintaining, certifying, tracking and reporting on parts. Includes risk analysis of the LAT instrument and ground systems. Maintain documentation and data libraries; manage configuration of the instrument and ground systems. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Engineer 6.00 6.00 5.00 5.00 5.00 5.00 5.00 5.00

Config. Manag. 1.70 1.70 0.70 0.70 0.70 0.70 0.70 0.70

TypeFY05

4.1.7 Electronics DAQ $3,058 = $1,361 Labor + $1,659 M&S + $37 Travel (detail below) 4.1.7.1 Electronics Management $273K = $160K Labor + $76 M&S + $37 Travel Management, technical writing, and computer support for the entire 4.1.7 effort. This includes hardware as PC maintenance for test stations as well as software maintenance as e.g. VxWorks. Shipping enclosures and shipping charges of flight modules between the assembly vendors and SLAC (and vice versa). Travel for engineers between the assembly vendors and SLAC are included. Flight acceptance testing requires a 24x7 presence of at least 2 people for all thermal vacuum testing. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Manager 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65

Software Developer 1.00Engineer 1.00 1.00 1.00

Technician 0.59 0.60 0.60 0.60 0.60

TypeFY05

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4.1.7.4.3.4 Tower Electronics Module Flight Unit $134K = $92K Labor + $42K M&S This WBS element includes the flight assembly contract change for TEM/TPS to reflect additional charges incurred by flight assembler (e.g. manual soldering of ACTELs, MAX724 regulators). Also, the hardware for EMI testing and thermal vacuum testing of TEM and the additional M&S to upgrade TV chamber to be able to handle more than 1 TEM is included. Labor to support TEM FU production function/performance and environmental testing. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Engineer 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50

Technician 0.70 0.50 0.50 0.50 0.50 0.50

TypeFY05

4.1.7.4.4.4 ACD TEM Flight Unit (i.e. GASU) and 4.1.7.4.8.4 GLT FU $475K = $116K Labor + $359K M&S Modification of flight printed-circuit cards. Also includes assembly of internal GASU harness at vendor. Cost of assembly of GASU DAQ and GASU Power-supply PCB’s and assembly of boards and harness into enclosures. Contract to vibration test the modules. Contract to perform radiative and conductive EMI/EMC testing of GASU. Design/fabrication of multiplexer cards required for thermal-vacuum test of GASU. Engineering contract to flight qualification and acceptance testing of GASU. Fabrication and test of GASU. Labor to create test-program and test support of qualification and acceptance testing of GASU. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Engineer 0.50 0.50 0.50 0.50 2.50 2.50 1.00 1.00

TypeFY05

4.1.7.4.5.4 LAT Communications Board Flight Unit $186K = $186K M&S Mainly includes cost of contract to assembly flight LCB boards. Also includes contract to test/qualify boards and hardware for the LCB tester required for flight acceptance testing. Labor to support LCB production manufacturing and testing. Labor (FTEs) No labor charged to this WBS

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4.1.7.4.9 Test Bed $699K = $536K Labor + $163K M&S Upgrade of engineering modules to reflect latest revisions of flight hardware. Modules include GASU, PDU, LCB, SIB, CPS, and Backplanes. The design, build, and test of test-boxes to simulate discrete interfaces. Included is also a contract for engineering services to investigate/analyze intermodule system timing. The labor to support the function and performance tests on test bed as well as support of several bench test stands for flight hardware and software testing. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Engineer 3.00 2.50 1.00 1.50 1.50 1.50 1.50 1.50

Technician 5.05 3.75 3.75 4.75 3.75 3.75 2.00 1.00

TypeFY05

4.1.7.5 Spacecraft Interface Unit $585K = $109K Labor + $476K M&S Includes contract to assemble internal SIU/EPU harness between back-plane and enclosure. Assembly contract to load/coat/stake Storage Interface Boards (SIBs), Crate Backplanes (CBPs), and Crate Power-supplies (CPSs). Assembly of SIB/CPS/LCB/CBP cards into SIU/EPU enclosure with RAD750 CPU. Create, validate, and support test of individual boards and assembled flight crates. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Engineer 1.00 1.00 1.00 1.00 1.00 1.00

Technician 1.70 0.20 0.20 0.20 0.20 0.20

TypeFY05

4.1.7.6 Power Conditioning $306K = $80K Labor + $226K M&S Includes assembly of internal PDU harness between PCB’s and enclosure connector plates. Assembly contract to load/coat/stake PDU PCB’s and assembly of board and internal harness into enclosure. Contract to vibration test the PDU. Also includes cost of conductive and radiative EMI/EMC testing of PDU. M&S for production tester of PDU. Labor to support PDU performance/function and environmental testing. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Engineer 0.75 0.75 0.75 0.75 0.75 0.75 0.70 0.70

Technician 0.05 0.05 0.05 0.05 0.05 0.05

TypeFY05

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4.1.7.A Electronic Ground Support Equipment $68K = $4K Labor + $64K M&S Rework and upgrade of EGSE stations supplied to all sub-systems as well as to DAQ and I&T. Components required to update firmware (FPGAs) including assembly and test services for the EGSE modules. Labor to test the updated modules. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Technician 0.05 0.05 0.05 0.05 0.05 0.05

TypeFY05

4.1.7.C I&T Support $332K = $264 Labor + $68K M&S M&S to build virtual spacecraft simulator for I&T use. Labor to support installation and test of DAQ modules and integration of such on the instrument. Labor (FTEs)

Feb-05 Mar-05 Apr-05 May-05 Jun-05 Jul-05 Aug-05 Sep-05Engineer 1.60 1.60 1.60 1.60 1.60 1.60

TypeFY05

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DOE Closeout Milestones

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DOE Contribution through 1/31/05 Total = $39.7M

4.1.1 Instrument Management ($6.2M) – DOE supported 40% of the project management expenses. Project office is at SLAC. 4.1.2 Systems Engineering ($2.5M) – DOE supported 40% of the systems engineering effort. 4.1.4 Tracker ($8.9M) – DOE supported tracker design which has been completed and verified. Major contribution by Italy and Japan. The first flight tower has been delivered to SLAC. 4.1.5 Calorimeter ($0.4M) – DOE supported the electronics design which is complete. Most of this subsystem is funded by NASA, with a contribution from France and Sweden. 4.1.6 Anti-Coincidence Detector ($0.3M) – DOE supported the electronics design which is complete. Most of this subsystem is funded by NASA. 4.1.7 Electronics, Data Acquisition System (DAQ), Flight Software ($9.2M) – DOE supported the management and design of the DAQ system (40% of costs). The design is complete and flight production is underway. 4.1.8 Mechanical Systems ($7.0M) – DOE supported 51% of the costs. The flight grid has been delivered to the I&T subsystem at SLAC. The radiators and cross-LAT plate are being fabricated. 4.1.9 Integration and Test ($3.8M) – DOE supported 62% of the I&T costs. The I&T facility is complete and the first flight tower has been assembled. 4.1.A Performance and Safety Assurance ($1.2M) – DOE supported 42% of the PSA costs.