Tenth Columbia flight. Deployed Syncom IV-5 (Reimbursable - DOD), a geostationary communications satellite also known as Leasat, for the U.S. Navy. Also retrieved the Long Duration Exposure Facility (LDEF) deployed on STS 41-C on April 6, 1984. Landed January 20, 1990 at Edwards Air Force Base, CA. Mission Duration: 261 hours 0 minutes 37 seconds.

Launch Date: January 9, 1990 Launch Vehicle: Columbia Crew: Commander: Daniel C. Brandenstein, Pilot: James D. Wetherbee, Mission Specialists: Bonnie J. Dunbar, Marsha S. Ivins, G. David Low

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