1962-012A
Ranger IV (P-36) was launched at 2050:15 by Atlas Agena B from Canaveral. The second Agena burn was cut off at 2104:19 and the Agena seperated at 2105. The solar panels did not extend and the spacecraft lost power. The signal was lost at 1247 on Apr 26; it impacted the lunar farside at 1249:53, at position 229.5E 15.5S.
| Ranger 4 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1962 Apr 23 | 2050:15 | Launch by Atlas Agena B | CC |
| BECO | |||
| 2052 | T+2:10? Atlas booster sep | ||
| 2052:35 | 56 km, 2.82 km/s | ||
| 2055:12 | T+4:56 Fairing | ||
| 2055:15 | T+5:00 Atlas sep | ||
| 2055:59 | T+5:44 Agena B MES-1 | ||
| 2058:33 | Agena B MECO-1 | ||
| 2102:48 | Agena B MES-2 | ||
| 2104:15 | Agena B MECO-2 | ||
| 2106:53 | Agena B sep | ||
| 2113:25 | T+23:10 Agena B retro | ||
| 1962 Apr 24 | 0922 | end of spacecraft power | |
| 1962 Apr 26 | 1247:50 | end of tx | |
| 1249:53 | Lunar farside impact | ||
Payload:
- TV camera
- Gamma ray spectrometer
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