1973-026A
The DOS 3 station, 17K No. 123, was launched on 1973 May 11. This time the station reached orbit, but failed shortly after separation. According to Chertok's memoirs the attitude control system was activated incorrectly and command-and-control mistakes led to depletion of the propellant in the first few orbits before the station could be brought under control. Instead of getting the name Salyut-3, DOS 3 was publicly designated Kosmos-557. Kosmos-557 reentered on 1973 May 22.
| Kosmos-557 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1973 May 11 | 0020:00 | Launch by Proton-K | KB |
| 0022? | Stage 2 burn | ||
| 0025? | Stage 3 burn | ||
| 0030? | Stage 3 sep | ||
| 0032 | Attitude control command | ||
| 0800? | RCS propellant depleted | ||
| 1973 May 11 | 1755 | 89.12 216 x 244 x 51.6 | |
| 1973 May 12 | 0500 | 89.01 214 x 243 x 51.59 (RAE) | |
| 1973 May 17 | 2200 | 88.62 196 x 216 x 51.6 | |
| 1973 May 21 | 0401 | 87.91 163 x 178 x 51.6 | |
| 1973 May 22 | 0307? | Reentered over Indian Ocean | |
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