| Names | Space Transportation System |
|---|---|
| Mission type | Communications satellites deployment (planned) |
| Operator | NASA |
| Mission duration | 7 days, 7 hours, 51 minutes, 51 seconds (planned) |
| Spacecraft properties | |
| Spacecraft | Space Shuttle Columbia (planned) |
| Launch mass | 1,217,990 kg (2,685,210 lb) |
| Landing mass | 90,584 kg (199,704 lb) |
| Payload mass | 21,937 kg (48,363 lb) |
| Crew | |
| Crew size | 7 (planned) |
| Members | Michael L. Coats John E. Blaha Robert C. Springer Anna L. Fisher James F. Buchli Pratiwi Sudarmono Nigel R. Wood |
| Start of mission | |
| Launch date | 24 June 1986, 13:09:00 UTC (planned) |
| Rocket | Space Shuttle Columbia |
| Launch site | Kennedy Space Center, LC-39B |
| Contractor | Rockwell International |
| End of mission | |
| Landing date | 1 July 1986, 21:00:51 UTC (planned) |
| Landing site | Kennedy Space Center, Runway 15 |
| Orbital parameters | |
| Reference system | Geocentric orbit (planned) |
| Regime | Low Earth orbit |
| Perigee altitude | 285 km (177 mi) |
| Apogee altitude | 295 km (183 mi) |
| Inclination | 28.45° |
| Period | 90.40 minutes |
 Space Shuttle patch  Back row: Anna L. Fisher, Robert C. Springer, James F. Buchli Front row: John E. Blaha and Michael L. Coats Cancelled Shuttle missions | |
STS-61-H was a NASA Space Shuttle mission planned to launch on 24 June 1986 using Columbia. However, it was canceled after the Challenger disaster.