Despun section provides fixed orientation for remote sensing insturments, star scanner, gyros. Redundant flight computers with high level of fault protection. 11 meter deployable boom for some science instruments. Deceleration module, consisting of aeroshell and aft cover, to slow initial descent and provide thermal control. 2.5 m parachute controls descent following deceleration module release.
Descent module contains redundant L-band transmitters, instrument package, batteries.
Downlink to Orbiter at 128 bps. Also performed flybys of Gaspra and Ida asteroids. 23 month orbital mission with 10 satellite encounters. Information in The Mission and Spacecraft Library is provided without warranty or guarantee.