KH-8 31 (GAMBIT 69) was launched on 1971 Apr 22 by Titan IIIB Agena D from Vandenberg on a 21 day flight. The last orbital maneuver was made on May 7.
| KH-8 31 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1971 Apr 22 | Launch by Titan IIIB Agena D | V SLC4W | |
| 1971 Apr 24 | 2052 | 90.07 134 x 421 x 110.9 | |
| 1971 Apr 28 | 1740 | 89.59 130 x 378 x 110.9 | |
| Orbit adjust | |||
| 1971 May 1 | 0533 | 89.64 131 x 382 x 110.9 | |
| Orbit raise | |||
| 2159 | 89.84 131 x 401 x 110.9 | ||
| 1971 May 2 | 1557 | 89.84 130 x 392 x 110.9 | |
| Orbit raise | |||
| 1971 May 3 | 2151 | 89.92 131 x 409 x 110.9 | |
| 1971 May 5 | 0049 | 89.78 131 x 395 x 110.9 | |
| Orbit adjust | |||
| 2315 | 89.83 131 x 400 x 110.9 | ||
| 1971 May 7 | 0810 | 89.65 130 x 383 x 110.9 | |
| Orbit raise | |||
| 1971 May 8 | 0208 | 89.96 131 x 413 x 110.9 | |
| 1971 May 11 | 0157 | 89.56 129 x 375 x 110.9 | |
| 1971 May 13 | 0305 | 88.99 126 x 321 x 110.9 | |
| 1971 May 13 | Reentered after 21d | ||