Skip to main content

Assessment of Planetary Protection Requirements for Spacecraft Missions to Icy Solar System Bodies (2012) / Chapter Skim
Currently Skimming:

Appendix C: Event Sequence Diagram for the Determination of Planetary Protection Measures for Missions to Icy Bodies
Pages 70-73

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 70...
... 1,2 The left-hand portion of Figure C.1 represents the decision of whether the planetary body of interest should be considered to be potentially habitable. Four criteria are used to judge the habitability of the planetary body and specifically question whether the planetary body is known to possess liquid water, the key elements considered essential for terrestrial life, environments known to be compatible with known extreme conditions of terrestrial life, and accessible sources of chemical energy.
Read the entire page →
From page 71...
... Putney, and J Minarck III, An Evaluation of Containment Assurance Risk for Earth Entry Vehicle and Space Shuttle Sample Return, Earth Entry Vehicle Office, NASA Langley Research Center Hampton, Va., September 30, 2002.
Read the entire page →
From page 72...
... Do current data indicate that the destination lacks liquid water essential for terrestrial life? (Decision Point 1)
Read the entire page →
From page 73...
... Effective? Required Minimal Clean Room Planetary Clean Room Assembly Protection Assembly Required Key to Planetary Protection Endpoints Clean room assembly but no bioload reduction required for Clean Room planetary protection Assembly Minimal planetary protection required, including NASA Minimal standard cleaning and bioload monitoring, heating sealed Planetary components to 60C for 5 hours, and molecular bioload Protection analysis Required Stringent planetary protection required, including NASA Stringent standard cleaning and bioload monitoring, molecular bioload Planetary Protection analysis, and Viking-level, terminal bioload reduction; or Required cancel mission FIGURE C.1 Continued.
Read the entire page →

Key Terms

  • current data
  • data indicate
  • planetary body
  • terrestrial life
  • event sequence

  • potentially habitable
  • earth entry
  • sample return
  • entry vehicle
  • protection requirements

  • icy body
  • protection required
  • stringent planetary
  • minimal planetary
  • protection methods

  • shuttle sample
  • assurance risk
  • including nasa
  • minarck iii
  • heat treatment

  • containment assurance
  • liquid water
  • space shuttle
  • target body
  • heterogeneous organic

  • sequence diagram
  • destination lacks
  • habitable planetary
  • nasa minimal
  • determining planetary


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.