STS-42 was a Space Shuttle Discovery mission with the Spacelab module. Liftoff which was originally scheduled for 8:45 EST (13:45 UTC) January 22, 1992, but the launch was delayed due to weather constraints. Discovery successfully lifted off an hour later at 9:52 EST (14:52 UTC). Orbiter landing with payload: 98,890 kg Payload: 13,066 kg Perigee: 291 km Apogee: 307 km Inclination: 57.0° Period: 90.5 min Mission highlights Launch: January 22, 1992, 9:52:33 a.m. EST. Launch delayed o… (More on Sts-42)