1969-080A
E-8-5 No. 403 was launched on 1969 Sep 23 but it was stranded in Earth orbit and announced only as Kosmos-300. Two objects were tracked by the US with reentry 4 days later. The second burn of the Blok-D stage may not have occurred, but according to Sokolov the Blok-D did burn but in the wrong direction, with reentry near Australia. However, this doesn't square with the object tracked until Sep 27, as no other objects were expected in orbit except the rapidly-reentering SOZ units. Another interpretation is that although US intelligence sources believed they were tracking stage 4 and the payload, it's possible that objects A and B were just the small SOZ units, ejected prior to the TLI burn, and the major objects both reentered.
| Kosmos-300 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1969 Sep 23 | 1407:36 | Launch by Proton-K | KB LC81 |
| 1409? | Stage 2 burn | ||
| Stage 3 burn | |||
| 1416 | Stage 3 sep | ||
| 1417 | Blok-D burn 1 | ||
| 1422? | Blok-D cutoff 1, parking orbit | 88.16 184 x 189 x 51.52 | |
| 1529? | Blok-D burn 2 failed | ||
| 1532? | Blok D sep | ||
| 1530? | Kosmos-300 reenters? | ||
| 1969 Sep 27 | 1969-080C reentered | ||
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