1976-057A
The final Almaz station to be launched was 11F71 No. 103, Almaz/OPS 3. OPS 3 took off from Baikonur on 1976 Jun 22.
The Soyuz-21 crew docked with Almaz on Jul 7. On Aug 17 the Almaz systems failed and the crew spent several tense hours with the station in free drift and with life support systems shut down, before they managed to restart everything. The following week, Zholobov became ill, with suspicions that the station's air had become contaminated. An expedited return to Earth was ordered.
Soyuz-23 failed to dock with the station in Oct 1976, and the next visitors arrived on Soyuz-24 on 1977 Feb 8. During the Soyuz-24 expedition the crew carried out the Atmosfera experiment to change the air on the station. This was originally prompted by the contamination fears. Tanks in the Soyuz BO were used to replenish the air as the station’s original air qwas vented from the EVA airlock; it appears that the station was not depressurized during this process. They landed on Feb 25 and the KSI film capsule was recovered the next day. The space station was maintained in orbit until August and then deorbited.
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| Salyut-5 |
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| Date | Time | Event | Orbit |
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| 1976 Jun 22 | 1804:00 | Launch by Proton-K | KB |
| | 1815 | Sep from 8S812 | 208 x 233 x 51.6 |
| | | 57C cataloged |
| 1976 Jun 24 | | | 213 x 245 x 51.6 |
| 1976 Jun 26 | | | 212 x 243 x 51.6 |
| | | | 215 x 257 x 51.6 |
| 1976 Jul 7 | 1340 | Soyuz-21 docked |
| | | Crew entry |
| | | Kdr: Boris Volynov |
| | | BI: Vitaliy Zholobov |
| 1976 Jul 8 | | | 213 x 254 x 51.6 |
| | | Orbit raise | 264 x 274 x 51.6 |
| 1976 Jul 29 | | 57D,E cataloged |
| 1976 Aug 9 | | 57FGH cataloged |
| 1976 Aug 20? | | 57J,K cataloged |
| 1976 Aug 24 | | Crew to Soyuz-21 |
| | 1400? | Soyuz-21 undocked |
| | 1512 | Undocking complete |
| 1976 Aug 25 | | | 259 x 269 x 51.6 |
| 1976 Oct 10 | | | 250 x 256 x 51.6 |
| | | Orbit raise | 254 x 272 x 51.6 |
| 1976 Oct 15 | | Soyuz-23 rendezvous |
| | | Soyuz-23 failed to dock | 255 x 268 x 51.6 |
| 1977 Jan 14 | | | 226 x 237 x 51.6 |
| | | Orbit raise | 231 x 259 x 51.6 |
| 1977 Jan 20 | | | 230 x 257 x 51.6 |
| | | Orbit raise | 257 x 260 x 51.6 |
| 1977 Feb 5 | | | 254 x 254 x 51.6 |
| | | | 254 x 260 x 51.6 |
| 1977 Feb 8 | | Soyuz-24 docked | 253 x 259 x 51.6 |
| 1977 Feb 9 | 0546 | Crew entry |
| | | Kdr: Viktor Gorbatko |
| | | BI: Yuriy Glazkov |
| 1977 Feb 21 | | Repressurization test (Atmosfera) |
| 1977 Feb 22 | | | 249 x 251 x 51.6 |
| 1977 Feb 23 | | Soyuz-24 engine test | 249 x 253 x 51.6 |
| 1977 Feb 24 | | Soyuz-24 engine test |
| 1977 Feb 25 | | Crew transfer to Soyuz-24 |
| | 0621 | Soyuz-24 undocked |
| 1977 Feb 26 | 0857? | KSI ejected |
| | 0909? | KSI entry |
| | 0928 | KSI landed |
| | | | 248 x 253 x 51.6 |
| | | | 248 x 256 x 51.6 |
| 1977 Mar 5 | | | 246 x 255 x 51.6 |
| | |
| 253 x 274 x 51.6 |
| 1977 Apr 15 | | | 240 x 257 x 51.6 |
| | |
| 254 x 269 x 51.6 |
| 1977 Apr 16 | |
| 257 x 266 x 51.6 |
| 1977 Jul 14 | | | 215 x 219 x 51.6 |
| | | | 219 x 233 x 51.6 |
| 1977 Aug 8 | |
| 182 x 185 x 51.6 |
| | 1255? | Deorbit? |
| | 1315? | Entry? |
| | 1320? | Impact S Pacific? |