1967-008A
Lunar Orbiter 3 was launched on 1967 Feb 5 at 0117 by Atlas Agena D from Cape Kennedy. After a 15 min Earth orbit coast, the Agena reignited at around 0140 to insert Lunar Orbiter III on a translunar trajectory. The midcourse maneuver was made on Feb 6 and the LOI-1 burn was made at 2155 on Feb 8, inserting LO-3 in a 216 x 1791 km orbit. On Feb 12 it was altered to a 55 x 1847 km x 20.9 deg orbit. The photo mission was concluded early due to problems with the readout system - and on March 4 the readout system failed entirely, with 72 of 211 frames still to be downlinked. The mission imaged several Apollo sites and spotted the Surveyor I spacecraft on the lunar surface. From Apr 17 to 21, LO-3 and LO-2 were used in tests for operating multiple spacecraft using the same frequency band. More orbit adjustments were made at 1745 on Apr 12 to shorten an eclipse, on Jun 17 to lengthen orbital life, and on Aug 30 to lower the orbit to simulate an Apollo mission reference orbit. Lunar Orbiter III was finally deorbited on 1967 Oct 9 at 1027.
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| Lunar Orbiter III |
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| Date | Time | Event | Orbit |
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| 1967 Feb 5 | 0117:01 | Launch by Atlas Agena D | CK LC13 |
| | 0119:10 | T+2:09 BECO |
| | 0121:49 | T+4:48 SECO |
| | 0122:10 | T+5:09 VECO |
| | 0122:12 | T+5:11 Fairing |
| | 0122:15 | T+5:14 Atlas 5803 sep | -4091 x 182 x 29.5 |
| | 0123:12 | T+6:11 Agena 6632 burn 1 |
| | 0125:48 | T+8:47 Agena MECO-1 | 88.2 180 x 202 x 29.5 |
| | 0135:26 | T+18:25 Agena burn 2 |
| | 0136:55 | T+19:54 Agena MECO-2 | 172 x 408662 x 29.8 |
| | 0139:39 | T+22:38 Agena sep |
| | 0150 | T+33m Agena retro |
| | | | 180 x 412065 x 29.8 |
| 1967 Feb 6 | 1502 | TCM 5.1m/s |
| | 1715 | | 40 x 404120 x 30.2 |
| 1967 Feb 8 | 2154:19 | LOI-1 burn 9:03 704.3m/s |
| | 2204 | LOI | 200 x 1802 x 20.93 |
| 1967 Feb 8 | | | 213 x 1796 x (32.4) B1950 |
| 1967 Feb 12 | 1813:26 | LOI-2 50.7m/s 33.7s | 55 x 1847 x 20.9 |
| | | 209.0 63 x 2120 x 20.93 (MOR) |
| 1967 Feb 15 | | Photo mission begins |
| 1967 Feb 23 | | Photo mission ends |
| 1967 Mar 4 | | Readout system failed |
| 1967 Mar 9 | | Begin extended mission | 55 x 1845 x 21.05 |
| 1967 May 25 | | Solar proton event, 40 rad |
| 1967 Apr 12 | | | 59 x 1841 x 21.3 |
| 1967 Apr 12 | 1745 | TCM 5m/s 3.5s phasing | 59 x 1824 x 22.7 |
| 1967 May | | |
| | | | 60 x 1824 x 21.05 |
| 1967 Jul 17 | 0121:46 | TCM 14.4m/s 8.9s height adj | 143 x 1824 x 21.05 |
| 1967 Aug | | |
| | | | 144 x 1824 x 20.9 |
1967 Aug 30
| 1939:19 | TCM 198.3m/s 128.5s | 144 x 316 x 20.9 |
| 1967 Oct 9 | | | 102 x 358 x 21.2 |
| 1967 Oct 9 | 0933:05 | Deorbit 32s, 53m/s | -15.8 x 334 x 21.2 |
| | 0933:38 | Deorbit burn complete |
| | 1027:11 | Impact at 14.32N 92.70W |