|Commander||Jon A. McBride|
|Pilot||Richard N. Richards|
|Mission Specialist 1||Jeffrey A. Hoffman|
|Mission Specialist 2||David C. Leestma|
|Mission Specialist 3||Robert A. Parker|
|Payload Specialist 1||Samuel T. Durrance|
|Payload Specialist 2||Ronald A. Parise|
Columbia was to carry the ASTRO-1 observatory, which would be used to make astronomical observations including observations of Comet Halley. ASTRO-1 consisted of three ultraviolet telescopes mounted on two Spacelab pallets, controlled by the Instrument Pointing System which was first tested on STS-51-F.
After the Challenger disaster, the flight was remanifested as STS-35 and several crew members were replaced. Both Richards and Leestma were reassigned to STS-28 while McBride left NASA in 1989. Vance Brand replaced McBride as the commander while Guy Gardner and Mike Lounge replaced Richards and Leestma, respectively.
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