| Registration number |
1985-028A / 15641 |
| Time and date of launch (UT) |
13h.59m.05s. April 12, 1985 |
| Launch site |
Cape Canaveral, LC 39-A |
| Launch vehicle |
Shuttle |
| Payload mass (kg) |
16249 |
| Orbital parameters: |
| - inclination (degrees) |
28.5 |
| - period (minutes) |
94.4 |
| - perigee (km) |
445 |
| - apogee (km) |
535 |
| Time and date of landing (wheel stop, UT) |
13h.55m.31s. April 19, 1985 |
| - rollout time (sec.) |
63 |
| Place of landing |
Runway 33, Kennedy Space Center, FL |
| Duration |
6d.23h.56m.26s. |
| Distance (km) |
4.651 million |
| Number of revolutions around Earth |
109 |
| Summary |
4th fly of space shuttle "Discovery".
|
| Date |
Time (UT) |
Spaceship's revo-
lution number |
Explanation |
|
Apr 12, 1985
|
13:59:05
|
1
|
Lift-off Shuttle, mission
"STS-51D"
(crew:
Bobko,
Williams,
Griggs,
Hoffman,
Seddon,
Walker,
Garn
).
|
|
Apr 16, 1985
|
12:40
|
62?
|
Beginning of EVA (
Griggs,
Hoffman
); mission
"STS-51D"
.
|
|
Apr 16, 1985
|
15:50?
|
64?
|
Ending of EVA (
Griggs,
Hoffman
), duration 3:10; mission
"STS-51D"
.
|
|
Apr 19, 1985
|
12:55?
|
109
|
Deorbit burn of Shuttle, mission
"STS-51D"
(crew:
Bobko,
Williams,
Griggs,
Hoffman,
Seddon,
Walker,
Garn
).
|
|
Apr 19, 1985
|
13:55:31
|
110
|
Landing of Shuttle, mission
"STS-51D"
(crew:
Bobko,
Williams,
Griggs,
Hoffman,
Seddon,
Walker,
Garn
).
|
