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STS-61-A (also known as Spacelab D-1) was the 22nd mission of NASA's Space Shuttle program. It was a scientific Spacelab mission, funded and directed by West Germany – hence the non-NASA designation of D-1 (for Deutschland-1). STS-61-A was the ninth and last successful flight of Space Shuttle Challenger before the disaster.
The codes were adopted from STS-41-B through STS-51-L (although the highest code used was actually STS-61-C), and the sequential numbers were used internally at NASA on all processing paperwork. After the Challenger disaster , NASA returned to using a sequential numbering system, with the number counting from the beginning of the STS program.
With its very heavy workload, the STS-61 mission was one of the most complex in the Shuttle's history. STS-61 lasted almost 11 days, and crew members made five spacewalks (extravehicular activities (EVAs)), an all-time record; even the re-positioning of Intelsat VI on STS-49 in May 1992 required only four. The flight plan allowed for two ...
Kathryn D. Sullivan (Mission Specialist) The STS-61-J mission was intended to deploy the Hubble Space Telescope into orbit. The telescope was eventually launched on STS-31 in 1990, with the same crew on board (except Young, who was replaced by Loren Shriver). [16] [19] STS-61-N 4 September 1986 Discovery: Brewster H. Shaw, Jr. (Commander)
This flight was the first pallet-only Spacelab mission, and the first mission to operate the Spacelab Instrument Pointing System (IPS). It carried 13 major experiments in astronomy, astrophysics, and life sciences. During this mission, Musgrave served as the systems engineer during launch and entry, and as a pilot during the orbital operations ...
STS-61 Endeavour: Kathryn C. Thornton Thomas Akers: HST servicing: Thorton rode the RMS to handle the solar arrays while Akers made the cable connections as the team replaced two solar arrays on Hubble. One array was discarded into space, and one array was furled and stowed for return to earth. [14] 7 December 03:35 6 hours 47 minutes 10:22 STS ...
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After completing 111 orbits of the Earth, STS-61-A landed at Edwards Air Force Base, California, on November 6, 1985. STS-61-A was the final successful flight of Challenger, as it was destroyed during the launch of its next mission, STS-51-L. With the completion of this flight, Hartsfield had logged 483 hours in space. [4]