1981-023A
7K-ST No. 10L was launched on 1981 Mar 12 to carry the final DOS 5 expedition, EO-6, to the Salyut 6 station. The spaceship was named Soyuz T-4. On May 26, EO-6 crewmembers Kovalyonok and Savinykh returned to Soyuz T-4 and landed in the Dzezkazgan recovery zone, completing the piloted DOS 5 program.
| Soyuz T-4, Flight 1 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1981 Mar 12 | 1900:11 | Launch by Soyuz-U | KB |
| 1902 | Blok BVGD sep | ||
| 1904 | Blok A sep | ||
| 1908 | Blok I MECO | ||
| 1908 | Blok I sep | ||
| 90.1 245 x 315 x 51.6 | |||
| 1981 Mar 13 | 2033 | Docked with Salyut-6 -X | |
| 2300 | Hatch open, crew entry | ||
| Soyuz T-4, Flight 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1981 May 26 | 0920 | Undocked Salyut-6 -X | |
| 1020? | BO sep | ||
| 1150? | Retrofire | 339 x 371 x 51.6 | |
| 1154? | DO CO | ||
| 1206? | PAO sep | -34? x 356 x 51.6 | |
| 1214? | Entry | ||
| 1237:34 | Landed 125 km E of Dzezkazgan | ||
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