DescriptionSTS-51 was a Space ShuttleDiscovery mission that launched the Advanced Communications Technology Satellite ACTS in September 1993. The flight also featured the deployment and retrieval of the SPAS-ORFEUS satellite and its IMAX camera, which captured spectacular footage of Discovery in space. A spacewalk was also performed during the mission to evaluate tools and techniques for the STS-61Hubble Space Telescope servicing mission later that year. STS-51 was the first shuttle mission to fly a GPS receiver, a Trimble TANS Quadrex. It was mounted in an overhead window where limited field of view and signal attenuation from the glass severely impacted receiver performance. (Full triple-redundant 3-string GPS would not happen until 14 years later with STS-118.)
Year of flight1993
Distance travelled (km)6,608,628
Days of mission10
Launch Date12/09/1993
Landing Date22/09/1993
Launch site (Mapping)Kennedy Space Center
Landing site (Mapping)Kennedy Space Center
Landing siteKennedy SLF Runway 15
Landing mass (kg)92371
Mission typeSatellite deployment
Mission typeAstronomy
Reference systemGeocentric
Perigee (km)300.00
Apogee (km)308.00
Orbital period (minutes)90.60
Orbits completed157
Inclination (degreees)28.45
Crew size5
MembersFrank L. Culbertson Jr. William F. Readdy James H. Newman Daniel W. Bursch Carl E. Walz
Spacecraft typeSpace Shuttle Discovery
Source (Wikipedia Page)