1984-057A
The last MCS satellite, Intelsat V F-9, was stranded in low orbit when its Centaur stage failed. A clogged fuel line meant that the first burn was 8 seconds shorter than planned, and the second burn shut down only 3.5 seconds into a planned 91 second firing. The thrusters were used to raise the orbit slightly; the satellite was deorbited using the apogee motor after 138 days. Following the loss of the Westar and Palapa satellites earlier in the year, the Intelsat failure triggered a rise in insurance premiums.
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| Intelsat V F-9 (MCS) |
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| Date | Time | Event | Orbit |
|---|
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| 1984 Jun 9 | 2303:00 | Launch by Atlas G Centaur | CC LC36 |
| | | T+2:10? BECO |
| | | T+2:13 Booster sep |
| | | T+2:44 Centaur insulation sep |
| | | T+3:29 Fairing sep |
| | | T+4:14 MECO |
| | | T+4:17 Atlas sep |
| | | T+4:23 Centaur MES1 |
| | 2312:26 | T+9:26 Centaur MECO1 (8 s short) | 172 x 318 x 28.7 |
| | 2326:42 | T+23:42 Centaur MES2 |
| | 2326:45 | Centaur MECO2 (after 3.5s) | 187 x 1240 x 29.2 |
| | 2329? | T+26:36 Centaur sep |
| 1984 Jun 10 | | | 98.77 176 x 1222 x 29.2 |
| 1984 Jun 11 | | | 98.69 172 x 1219 x 29.1 |
| 1984 Jun 16 | |
| 99.31 229 x 1221 x 28.7 |
| 1984 Jul 19 | | | 99.05 238 x 1187 x 28.7 |
| 1984 Oct 22 | | | 98.29 242 x 1111 x 28.7 |
| 1984 Oct 24 | 0910? | Star 37XF fired to deorbit |
| 0955? | Reentered |