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Micro-Penetrators for Icy Planets. Basics : Low mass [~5Kg] Very tough [~ 200-500 m/s, impact ~10-50kgee] Perform science from below surface [~0.5-few m]. 2 kg payload. 5 kg. Impact Trial – May 19-21 2008. Configuration: 3 penetrators (~0.6m long, ~13kg, Aluminium

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micro penetrators for icy planets
Micro-Penetrators for Icy Planets
  • Basics:
  • Low mass [~5Kg]
  • Very tough [~ 200-500 m/s, impact ~10-50kgee]
  • Perform science from below surface [~0.5-few m]

2 kg payload

5 kg

impact trial may 19 21 2008
Impact Trial – May 19-21 2008
  • Configuration:
  • 3 penetrators (~0.6m long, ~13kg, Aluminium
  • ~310 m/s impact velocity (just subsonic)
  • ~10 degs nose-up impact angle (worst case)
  • Dry sand target
  • Results:
  • All 3 penetrators survived (& 2 hit steel girder)
  • ~4m penetration depth
  • ~5-17kgee forces measured
  • Possibly 1’st micro-seismometer survival at 10Kgee.
  • Next steps:
  • Harder targets (ice, sand/ice, concrete)
  • Fully operational configuration
  • Transmission from target
  • Supporting studies