Photo: Bill Ingalls · Public domain (US government)
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About this launch
STS-51-I was the twentieth of the shuttle program and sixth of Space Shuttle Discovery. It deployed three 10 satellites and then repaired a malfunctioning satellite. This mission required two EVAs.
Where to watch
Replay Launch webcastMore about this launch
Flight profileThe climb, seen from the side · 3D replay on the globe
Launch window and padKennedy Space Center, FL, USA
- Site
- Kennedy Space Center, FL, USA
Rocket and boosterSpace Shuttle
- Vehicle
- Space Shuttle
Space Shuttle: specs, record and next flights → Lockheed: all its launches →
MissionCommunications · LEO
Communications · LEO
What it put in orbit8 catalogued objects, 3 of them satellites
| Object | Type | Orbit | Globe |
|---|---|---|---|
| STS 51I 1985-076A | Payload | re-entered 1985-09-03 | |
| OPTUS A1 (AUSSAT 1) 1985-076B | Payload | 35917 × 35946 km · 13.2° | Globe |
| ASC 1 1985-076C | Payload | 35778 × 35784 km · 13.7° | Globe |
| LEASAT 4 1985-076D | Payload | 36460 × 36528 km · 9.9° | Globe |
| OPTUS A1 R/B [PAM-D] 1985-076E | Rocket body | 417 × 34074 km · 25.8° | Globe |
| LEASAT 4 PKM 1985-076F | Rocket body | 383 × 13837 km · 27.4° | Globe |
| ASC 1 R/B [PAM-D] 1985-076G | Rocket body | 331 × 34295 km · 26.2° | Globe |
| STS 51I DEB SCREWDRIVER 1985-076H | Debris | re-entered 1986-02-28 |
COSPAR ID 1985-076. Orbits from the CelesTrak satellite catalogue (perigee × apogee, inclination).
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