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STARDUST Project CRITICAL EVENTS READINESS REVIEW COMET P/WILD 2 ENCOUNTER Design Principals Compliance Robert Ryan. JPL: 303-411 AM / 301-427 PM LMA: MSA +1 818 354-1275 08:00 AM - 05:00 PM PST 20 Nov 2003. PFPD PRINCIPALS COMPLIANCE.
STARDUST ProjectCRITICAL EVENTS READINESS REVIEWCOMET P/WILD 2 ENCOUNTERDesign Principals ComplianceRobert RyanJPL: 303-411 AM / 301-427 PMLMA: MSA+1 818 354-127508:00 AM - 05:00 PM PST20 Nov 2003CERR - RyanPFPD PRINCIPALS COMPLIANCE Project policies and mission success criteria relevant to encounterDocumentation has been reviewed and updated Mission Plan, Mission Success CriteriaRequirements reviewed with applicable subsystemsEncounter operations defined by regular STARDUST operations
  • Multiple opportunities for all uplinks
  • Exercised our TCM GO/NOGO and Last Update at AnnefrankSuccessful ORT to review TCM file transfer and turn-around time on 11/5Additional ORT in early December for final TCM and UpdateCERR - Ryan1 of 5PFPD PRINCIPALS COMPLIANCE
  • Design Principles compliance assessment
  • Compliance exception due to Spacecraft/Mission Design
  • 3.3.1 Continuous Telecommunications Capability during Events
  • Fixed design of the spacecraft means that the bank turn during flyby could cause loss of comm. In the Mission Plan; does not impact prime science
  • 9.3.1 Powering off the RF downlink
  • Insufficient solar power beyond 2 AU for continuous operation
  • Possible risk of db loss due to continuous SSPA operation
  • Flight Project Practices compliance assessment
  • Three potential non-compliances, related to Discovery class small organization
  • 5.4.2 Organizational positions
  • 5..9.3.3 Earned value not used in Phase E
  • 7.8.5 No Project Safety Steering committee
  • CERR - Ryan2 of 5PFPD PRINCIPALS COMPLIANCE Results of review of lessons learned data base
  • Reviewed Master Lessons Learned data base
  • Developed SDU Lessons Learned Matrix
  • 39 Significant Items
  • Reviewed Cassini and MER Lessons Learned
  • No additional items applied
  • Developed Annefrank Lessons Learned Matrix
  • 38 Action Items
  • Closed in June 2003
  • Reviewed during August Workshop
  • CERR - Ryan3 of 5Mission AssuranceStardust RESIDUAL RISK LIST for WILD-2CERR - Ryan4 of 5Mission AssuranceStardust RESIDUAL RISK LIST (cont.)
  • Mission Design Risk
  • 23. Updated Comet Dust Production model changes dust distribution
  • Mitigation Activity
  • Flyby moved from planned 150 km to 300 km to mitigate risk of a large particle hit.
  • Plan at NASA Headquarters for approval
  • CERR - Ryan5 of 5Preparation for Wild 2 BACKUP MATERIALB-1 of 8CERR - Ryan5LIK4ELI3H Almost certainOMorelikely thannotO2Significant likelihoodDUnlikelyVeryunlikely112345CONSEQUENCEProject Residual Risk MethodologyRisk Assessment Criteria for Likelihoodand ConsequenceRisk Type (either or both may apply to each risk)Mission RiskImplementation RiskLikelihood of OccurrenceLevelLikelihoodLevel Definition5VeryHigh4High3Moderate2Low1VeryLowConsequence of OccurrenceLevelMissionRisk LevelDefinitions5Missionfailure4Significantreductionin missionreturn3Moderate reductionin missionreturn2Small reduction in missionreturn1Minimal(or no)impact to missionSeverityLevelImplementationRisk Level Definition5Overrun budget and contingency,cannot meetlaunch withcurrent resources4Consumeallcontingency, budget or scheduleB- 5 of 8Implement newprocess(es)3Significantreductionin contingency or launch slackor change baseline plan(s)2Small reduction incontingency or launchslack1Minimalreductionin contingency or launch slackAggressively manage;consider alternativeprocessCERR - RyanMonitorStardust RESIDUAL RISK LISTB-6 of 8CERR - RyanStardust RESIDUAL RISK LIST (cont.)B-7 of 8CERR - RyanStardust RESIDUAL RISK LIST (cont.)B-8 of 8CERR - RyanLessons LearnedAnnefrank Lessons Learned Action ItemsB-2 of 8CERR - RyanLessons Learned Annefrank Lessons Learned Action Items (continued)B-3 of 8CERR - RyanLessons Learned Annefrank Lessons Learned Action Items (continued)B-4 of 8CERR - Ryan
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