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Extending the Effective Lifetimes of Earth Observing Research Missions (2005) / Chapter Skim
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Executive Summary
Pages 1-2

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From page 1...
... NASA's mission-extension paradigm for accomplishing research missionswhich is based on planning and funding nominal operational lifetimes, with a separate decision process for extending operations when this nominal lifetime is exceededis fundamentally sound. · Implementation of the mission-extension paradigm warrants a structured and uniformly applied process that balances the desirability of extending a mission against the feasibility of doing so.
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From page 2...
... , involving incremental evaluations beginning several years in advance of the final decision, so as to increase community visibility and facilitate partner commitments, with a biennial status briefing that includes all potential partners. Rolling 5-Year Evaluation, Funding, and Extension Cycle 5-Year 3-Year Next-Year Extension Extension Extension Evaluation Reevaluation Selections · Extension Criteria · Reassessment of Prior · Reassessment of Prior Out-Year Priorities Out-Year Priorities · Funding to Budget Year 5 · Begin Second 5-Year · Begin Third 5-Year Cycle (to Year 7)
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Key Terms

  • science missions
  • unique considerations
  • senior review
  • science mission
  • research missions

  • mission extensions
  • earth observing
  • accommodate earth
  • space science
  • investigate alternative

  • increase community
  • explicitly included
  • extending operations
  • observing research
  • evaluations beginning

  • effective lifetimes
  • missions reviews
  • status briefing
  • adequately satisfy
  • funding nominal

  • decision process
  • involving incremental
  • final decision
  • facilitate partner
  • exceededis fundamentally

  • nasa decisions
  • separate decision
  • potential partners
  • current process
  • nasa decision


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