1992-072A
Hughes Communications Inc.'s Galaxy 7H was an HS-601 hybrid C/Ku band satellite replacing the C-band Galaxy 6 (which in turn replaced Galaxy 1) and the Ku-band SBS 4. It was used for cable TV distribution and private communications networks.
This mission used Perigee Velocity Augmentation (PVA), a procedure which optimizes the combined performance of launch vehicle and satellite to increase the on-orbit life of the satellite. The Ariane 42P lifted around 280 kg of additional satellite propellants, to a lower apogee of 27,600 km instead of the usual geostationary transfer apogee of 35,975 km. The Galaxy VII satellite used its apogee motor at the 3rd and 6th perigee to raise the apogee to the altitude normally used for circularization of the orbit, followed by regular apogee burns.
| Galaxy VIIH | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1992 Oct 28 | 0015 | Launch by Ariane 42P | |
| 0016 | T+01:31 PAP jettison | ||
| 0018 | T+03:27 L220 sep | ||
| 0018 | T+03:30 L33 ignition | ||
| 0019 | T+04:35 Fairing sep | ||
| 0020 | T+05:30 L33 cutoff, sep | ||
| 0020 | T+05:43 H-10 ignition | ||
| 0033 | T+18:11 H-10 cutoff | ||
| 0035 | T+20:00 H-10 sep, orbit injection | ||
| 0037 | T+22:46 H-10 sep mv, shutdown | ||
| 479.15 216 x 27594 x 7.0 | |||
| 1992 Oct 29 | 0h (s) | PVA burn 1, 3rd peri | |
| 519.06 198 x 29834 x 7.0 | |||
| 1992 Oct 30 | 12h(s) | PVA burn 2, 6th peri | |
| 1992 Nov 2 | (s) | AKM burn 1, 12th apo | |
| 1992 Nov 4 | (s) | AKM burn 2, 14th apo | |
| 1992 Nov 4 | 1436.00 35694 x 35874 x 0.2 GEO 89.5W+0.02E | ||
| 1992 Nov 5 | (s) | AKM burn 3, 15th apo | |
| 1992 Nov 7 | 1435.32 35684 x 35858 x 0.1 GEO 89.1W+0.2E | ||
| 1992 Nov 7 | (s) | Solar panel deploy | |
| 1992 Nov | Due GEO 91W | ||
| 1992 Nov 29 | 1436.10 35782 x 35790 x 0.1 GEO 90.9W | ||
| 1992 Dec 20 | 1436.14 35777 x 35797 x 0.1 GEO 91.0W | ||
| 1994 Apr 18 | 1436.12 35778 x 35796 x 0.1 GEO 91.0W | ||
| 1996 Jun 2 | 1436.10 35776 x 35796 x 0.1 GEO 91.0W | ||
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