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Section 20.0 Mission Assurance

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Section 20.0 Mission Assurance

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  1. 5 Space Technology GSFC “Tomorrow’s Technology Today” Section 20.0 Mission Assurance Roger Counts Systems Assurance Manager ST5 PDR June 19-20, 2001

  2. Mission Assurance Organization GSFC OSSMA (Code 300) Systems Review Office Project Manager Systems Assurance Manager • Quality Assurance • Quality Engineering • S/W Quality Assurance • Inspection/Audits • Certification/Training • NCRCA • MRB • Materials Engineering • Materials Engineer • Coupon Analysis • Material Usage Agreements • Analysis Lab • Systems Safety and Reliability • Systems Safety Engineer • Reliability Engineer • Environmental Program • Parts Engineering • Parts Engineer • Parts Selection/stocking • Alerts • Analysis Lab

  3. Mission Assurance Requirements • Tailored from the requirements suggested by the Mission Assurance Guidelines GPG 8730.4.2 • Contained in “Mission Assurance Requirements for the ST5 Project”, ST5-495-010 • Technical Reviews in addition to Peer Reviews • System Concept Review (SCR) – Completed May 2000 • Preliminary Design Review (PDR) – June 19-20, 2001 • Critical Design Review (CDR) • Pre-Environmental Review (PER) • Mission Operations Review (MOR) • Pre-Shipment Review (PSR) • Flight Operations Review (FOR) • Flight Readiness Review (FRR)

  4. Mission Assurance Requirements • Design Verification • Performance Verification Plan (PVP) • Verification Program based upon GEVS-SE • Verification Matrix (for both H/W and S/W) • Environmental Test Matrix • Procedures and Reports • Protoflight and Acceptance testing to ST5 S/C Specification and Requirements document (ST5-495-007) • Protoflight testing shall be performed on the first Flight Unit of the ST5 constellation • Acceptance testing shall be performed on follow-on Flight Units

  5. Mission Assurance Requirements • Safety • “ST5 System Safety Implementation Plan”, ST5-495-040 - Approved • Assumes use of ELV, and not Shuttle • Developers provide required information for GSFC Safety Engineer • GSFC has overall safety responsibility • Parts Requirements • PPL-21, Grade 2 as baseline. Lot specific Qualification and DPA implemented based on part heritage. Parts Control Plan currently in draft form; is being implemented for all subsystems. • Parts Control Board review of selected parts. Approved parts will be added to ST5 PAPL and posted on web site.

  6. Mission Assurance Requirements • Electronic Packaging and Process • NASA Workmanship Standards • Coupon Evaluation • Materials • NASA Publication 1124, Outgassing Data for Selecting S/C Materials, shall be used as a guide. • Materials approved via a Materials Control Board chaired by Project Materials Engineer • Materials must meet CVCM level 0.1% and TML of 1.0% • Non-approved materials or nonconventional use of materials processed via Materials Usage Agreement (MUA) • GSFC S-313-100, GSFC Fastener Integrity Requirements

  7. Mission Assurance Requirements • Reliability • FMEA – To be completed by CDR • Fault Tree Analysis - To be completed by CDR • Probability Risk Assessment (PRA) • Assessments shall include Worst Case Analysis, Parts Stress Analysis, and limited life items program

  8. Mission Assurance Requirements • Quality Manual (or equivalent) required from major subcontractors (All are due prior to CDR) • Cold Gas Micro-Thruster System - Marotta Scientific Controls, Inc. • Approved • Li-Ion Battery - AEA Technology • X-Band Transponder Communications System - AeroAstro • Received Draft Version • Flexible Cable - Lockheed Martin Astronautics, Denver • Autonomous Ground-Based Constellation Management S/W - JPL/Bester Tracking Systems, Inc • Magnetometer - UCLA • Received Draft Version

  9. Mission Assurance Requirements • Contamination • Contamination Control Plan • S/W • S/W Management Plan • Configuration Control • Quality Assurance • Testing • Performance Validation Matrix • IV&V • MOA with Code 307 outlining the extent of IV&V