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EO-1 Firsts  

see the associated Validation Report, Part 9 - EO-1 Firsts, MsWord

Related Sites
USGS/EO-1 website at

Questions and comments related to this document should be directed to:

Michael Flick
EO-1 Technology Transfer Manager
EO-1 Mission Office
NASA Goddard Space Flight Center
Greenbelt, MD 20771
Phone: 301-286-8146
Fax: 301-286-1736
E-Mail: Michael Flick

Spacecraft Bus

When considering the large number of accomplishments resulting from the EO-1 mission, a sizable number can be classed as "firsts". Listed below are those "firsts" that are considered most significant for the Spacecraft Bus.

First to:

  1. Use high data rate electronically steerable antenna at X-band frequency.
  2. Use NASA very high data rate solid-state recorder (> 1 Gbps).
  3. Use Reed-Solomon error detection and correction chip that operates at 1 Gbps.
  4. Validate non-linear autonomous, long term formation flying and use of software that incorporates
    fuzzy logic.
  5. Use pulsed plasma thruster as precision attitude control actuator.
  6. Use shape memory alloy for system hinge and deployment mechanism.
  7. Use panel with Carbon-Carbon as facesheet material where panel is utilized both as a radiator and as part of spacecraft primary structure.

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