1968-091A
The first antisatellite orbital test was Kosmos-249. The IS used a radar tracking system and a warhead filled with high explosive and shrapnel. The Kosmos-249 5V91 IS spacecraft was launched on 1968 Oct 20 into a low orbit. The rocket was tracked by RAE in a 136 x 254 km orbit later in the day; I speculate the original apogee was 500 km. The IS propulsion system ignited to place the spacecraft on an intercept course with Kosmos-248, launched the previous day. It passed within 1 km on the second orbit and then exploded at apogee.
| Kosmos-249 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1968 Oct 20 | 0402 | Launch by 11K67 | KB |
| 0404 | Stage 2 burn | ||
| 0407? | Stage 2 sep | 88.38 136 x 254 x 62.4 (RAE) | |
| 0415 | 86.90 104 x 137 x 62.27 | ||
| 0440 | 136 x 501 x 62.3 | ||
| 0453? | IS DU orbit change | 501 x 501? x 62.3 | |
| 0555 | IS DU orbit change 60N 58E | 106.62 501 x 1638 x 62.23 | |
| 0733? | Intercept Kosmos-248 | ||
| 0830? | Exploded at apogee | ||
| 2026 | 112.19 488 x 2165 x 62.3 | ||
| 2257 | (Stage 2 orbit) | 87.66 135 x 182 x 62.3 | |
| 1974 Jun 4 | 112.04 494 x 2145 x 62.3 | ||
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