STS-61-G

STS-61-G
NamesSpace Transportation System
Mission typeGalileo spacecraft deployment
OperatorNASA
Mission duration4 days, 1 hour, 11 minutes (planned)
Spacecraft properties
SpacecraftSpace Shuttle Atlantis (planned)
Launch mass116,831 kg (257,568 lb)
Landing mass88,881 kg (195,949 lb)
Payload mass22,064 kg (48,643 lb)
Crew
Crew size4 (planned)
MembersDavid M. Walker
Ronald J. Grabe
Norman E. Thagard
James D. A. "OX" van Hoften
Start of mission
Launch date20 May 1986, 20:21:00 UTC
(planned) - Never launched
RocketSpace Shuttle Atlantis
Launch siteKennedy Space Center, LC-39A
ContractorRockwell International
End of mission
Landing date24 May 1986, 21:32:00 UTC (planned)
Landing siteKennedy Space Center
Orbital parameters
Reference systemGeocentric orbit (planned)
RegimeLow Earth orbit
Perigee altitude298 km (185 mi)
Apogee altitude307 km (191 mi)
Inclination34.30°
Period90.60 minutes

STS-61-G mission patch

David M. Walker, Ronald J. Grabe, Norman E. Thagard, James D. A. "OX" van Hoften
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Cancelled Shuttle missions

STS-61-G was a NASA Space Shuttle mission planned to launch on 20 May 1986, using Atlantis. The main objective of this mission was to launch the Galileo spacecraft toward Jupiter using the Centaur-G upper stage. It was canceled after the Space Shuttle Challenger disaster.