1962-041A
Mariner 2 was launched at 0653:14 on 1962 Aug 27 by Atlas Agena B from Cape Canaveral. The Atlas separated at 0658 and the Agena began its first 2.5 minute burn, entering Earth parking orbit at 0701. At 0717 the Agena re-ignited and separated at 0721 to insert Mariner II in solar orbit. At around 0722 the Agena made a small avoidance maneuver to ensure it would not hit Venus.
A course correction at 2249 on 1962 Sep 2 decreased the Venus miss distance from 370000 km to only 15000 km. Mariner II flew past Venus at 1952 on 1962 Dec 14, sending back measurements of its atmosphere in the first successful planetary flyby. Mariner II continued transmitting until 1963 Jan 2.
| Mariner 2 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1962 Aug 27 | 0653:14 | Launch | |
| BECO | |||
| Booster sep | |||
| SECO | |||
| 0658 | Atlas sep | ||
| 0658:53 | Agena MES-1 | ||
| 0701:26 | T+8:12 Agena MECO-1 | 187 x 187 x 32.7? | |
| 0717:43 | T+24:29 Agena MES-2 | ||
| 0719:17 | T+26:03 Agena MECO-2, 14.87S 2.1W | ||
| 0721 | Agena sep | ||
| 0722 | Agena avoidance burn | ||
| 1962 Sep 4 | 2249 | TCM 83m/s 28s | |
| 1962 Sep 5 | 0245 | TCM complete | |
| 1962 Sep 8 | Temporary attitude loss | ||
| 1962 Dec 14 | 1952 | Venus flyby 34773 km (ctr?) | |
| 1962 Dec 27 | 0738 | Perihelion 0.705 AU | |
| 1963 Jan 3 | 0615 | End of tx | |
Payload:
- Microwave radiometer
- IR radiometer
- Magnetometer
- Cosmic ray particles detector
- Solar plasma spectrometer
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