1 / 12

GLAST Large Area Telescope: Face to Face Meeting November 17, 2004

This document provides a cost plan and variance summary, lien list, manpower plan, and cost/manpower overview for the GLAST Large Area Telescope Anti-Coincidence Detector (ACD) subsystem. It also includes a schedule, backup material, critical path, descope options, and assumptions and risks.

lyndam
Télécharger la présentation

GLAST Large Area Telescope: Face to Face Meeting November 17, 2004

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Gamma-ray Large Area Space Telescope GLAST Large Area Telescope: Face to Face Meeting November 17, 2004 AntiCoincidence Detector (ACD) Subsystem WBS: 4.1.6 David J. Thompson Thomas E. Johnson NASA Goddard Space Flight Center Subsystem Manager/Instrument Manager David.J.Thompson@nasa.gov Thomas.E.Johnson@nasa.gov

  2. Outline • Cost Plan – Variance Summary • Lien List • Manpower Plan • FY05 Cost/Manpower Overview • FY06 & 07 Cost/Manpower Overview • Schedule • Backup Material • Critical Path • Descope Options • Assumptions and Risks

  3. COST PLAN – VARIANCE SUMMARY

  4. Lien List • * Updated Lien list from the lien list provided by Jay Doubrava on 10/13/04

  5. Manpower Plan • The following table provides both the Contractor and Civil Servant manpower plan for FY05-FY07 • Assumptions: • ACD RFI and integration to the LAT date is 5/17/04. • ACD Support Team ramps down significantly after 5/17/04. • From July – September, 1.8 FTE’s are for Science Support and the remaining support is for Systems Engineering and Management.

  6. FY05 Cost/Manpower Overview by Task

  7. FY06 & 07 Cost/Manpower Overview by Task • Assumptions: • Civil Service personnel salaries are paid by Goddard, not the LAT. • Labor consists of science support only.

  8. Schedule Flow 10/4 – 11/30 11/25 – 12/7 12/2 – 1/11 Qual Electronics Chassis Environmental Test 1st flight chassis Environmental Acceptance Test The remaining Seven Flight Chassis Environmental Acceptance tests 12/29/04 – 1/14/05 6/10 – 11/19 12/14 – 1/13 12/7 – 12/13 Assemble last 2 rows of TDAs & WSF (124-130, 224-230, 324-330, 424-430) onto TSA Initial TDA/TSA I&T in B7 Install & test 1st & 2nd flight Chassis onto ACD Install & test remaining six flight Chassis onto ACD 1/27/05 – 2/10/05 2/23/05 – 3/4/05 2/11/05 – 2/23/05 2/10/05 1/25/05 – 1/27/05 1/14/05 – 1/25/05 1/14/05 ACD Subsystem Efficiency Verification test (include rotate ACD 90 degree) Vibration Test EMI/EMC Test Pre- Environmental Review (PER) Install Thermal Blanket & MMS ACD Full Functional Test ACD Integration complete 4/12/05-4/19/05 (was 3/26/05 – 4/2/05) 3/4/05 –3/10/05 3/10/05 – 4/7/05 4/7/05 – 4/8/05 4/11/05 4/19/05 – 5/17/05 Mass Properties Pre-ship Review (PSR) Acoustic Test Thermal Balance/ Thermal-Vac Test Post-ship Checkout & Full Functional Test at SLAC ACD ship to SLAC

  9. BACKUP SLIDES

  10. ACD Critical Path - PMTs

  11. Descope Options • Perform environmental testing at the LAT Level. • The ACD Subsystem would not be fully qualified prior to integration to the LAT. This would transfer schedule and cost risk to LAT integration. • The following table provides the cost and schedule savings for eliminating testing at the ACD Subsystem level.

  12. COST PLAN – Assumptions and Risks • Assumptions • Success based plan. Rapid resolution of current technical issues (PMTs and EGSE) is required to stay on plan. • ACD RFI date is 5/17/04. • Minimal support (details provided on slides 3,4,6,&7) is provided following integration of the ACD to the LAT. • Risks • No contingency in ACD cost plan. • A later than 5/17/04 integration date to the LAT will not allow the full planned ramp down of ACD personnel.

More Related