1958-F19
The third Pioneer lunar orbiter was launched on 1958 Nov 7 by Thor Able I from Canaveral. The third stage failed to ignite and the probe only reached an apogee of 1550 km. Burnout velocity was 7.15 km/s. Impact was in central Africa.
Pioneer II was the first probe launched after the formation of NASA but remained under the direction of the USAF.
The planned trajectory envisaged a vernier burn of 22m/s after Altair sep. Planned lunar orbit was 2250 x 23000 km.
| Pioneer 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1958 Nov 7 | 0730:21 | Launch by Thor Able 1 | CC |
| 0733:00 | T+2:39 Thor MECO | ||
| 0733:01 | Able burn | ||
| 0733:02 | T+2:41 Thor sep | ||
| 0733:11 | T+2:50 Fairing sep | ||
| 0734:51 | T+4:30 Able MECO | ||
| 0734:53 | T+4:32 Able sep | ||
| 0734:51 | Altair failure | ||
| 0738:29 | T+8:08 Altair sep | -2483 x 1544 x 32.12 | |
| 0740 | Vernier burn | ||
| 0752 | Apogee 1550 km | ||
| 0816 | Reentry 28.7E 1.85N | ||
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