1995-072A
IRS-1C was the first of an improved generation of IRS satellites, placed in a 10:30 local time sun-synchronous orbit. Mass was 1350 kg launch, 1250 kg on orbit. This was the first launch by a Molniya 8K78M into sun-synchronous orbit; the Blok-I stage was suborbital and the Blok-2BL fourth stage fired to circularize the orbit. Bus was 1.6 x 1.6 x 1.1m with solar panel span about 12m?
| IRS-1C | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1995 Dec 28 | 0645:18 | Launch by Molniya 8K78M | KB LC31 |
| 0647:18 | Blok-BVGD sep. 60 km (T+2:00) | ||
| 0648:57 | Fairing sep, 210 km (T+3:39) | ||
| 0649:21 | Blok A sep, 252 km (T+4:02) | ||
| 0653:24 | Blok I sep, 604 km (T+8:05) | -4487 x 803 x 97.94 | |
| 0656:40 | BOZ ignition, (T+11:21) | ||
| 0657 | Blok 2BL ignition | ||
| 0657:20 | BOZ separation, 2BL at 0.75 thrust, 798 km (T+12:01) | ||
| 0700:12 | Blok 2BL cutoff (T+14:53), 804 km | ||
| 0700:19 | Blok 2BL sep (T+15:01) | 101.1 805 x 817 x 98.6 | |
| 0707? | Blok I reentry, Arabian Sea off Somali coast? | ||
| 0710:20 | Blok 2BL deorbit | ||
| 1996 Jan 1 | Orbit raise | 816 x 818 km x 98.6 | |
| 1996 Jan 5 | Cameras switched on | ||
| 2009 Sep 21 | End of operations | ||
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