 Spacelab Module LM1 in Columbia's payload bay, serving as the Spacelab D-2 laboratory. | |
| Names | Space Transportation System-55 Spacelab D-2 |
|---|---|
| Mission type | Microgravity research |
| Operator | NASA and DLR |
| COSPAR ID | 1993-027A |
| SATCAT no. | 22640 |
| Mission duration | 9 days, 23 hours, 39 minutes, 59 seconds |
| Distance travelled | 6,701,603 km (4,164,183 mi) |
| Orbits completed | 160 |
| Spacecraft properties | |
| Spacecraft | Space Shuttle Columbia |
| Landing mass | 103,191 kg (227,497 lb) |
| Payload mass | 11,539 kg (25,439 lb) |
| Crew | |
| Crew size | 7 |
| Members | |
| Start of mission | |
| Launch date | April 26, 1993, 14:50:00 UTC (10:50 am EDT) |
| Launch site | Kennedy, LC-39A |
| Contractor | Rockwell International |
| End of mission | |
| Landing date | May 6, 1993, 14:29:59 UTC (7:29:59 am PDT) |
| Landing site | Edwards, Runway 22 |
| Orbital parameters | |
| Reference system | Geocentric orbit |
| Regime | Low Earth orbit |
| Perigee altitude | 304 km (189 mi) |
| Apogee altitude | 312 km (194 mi) |
| Inclination | 28.45° |
| Period | 90.70 minutes |
 STS-55 mission patch  Standing: Harris, Schlegel, Ross, Walter Seated: Henricks, Nagel, Precourt | |
STS-55, or Deutschland 2 (D-2), was the 55th overall flight of the NASA Space Shuttle and the 14th flight of Shuttle Columbia. This flight was a multinational Spacelab flight involving 88 experiments from eleven different nations. The experiments ranged from biology sciences to simple Earth observations.