1989-096A
The Granat (`Garnet') satellite (article 1AS) was launched in Dec 1989 into a highly elliptical Earth orbit by a Proton-K with a Blok-D-M (11S824M) upper stage. Granat was dedicated to high energy astrophysics; its flagship instrument was the French-built SIGMA telescope which used a coded mask to make images in the hard X-ray band above 30 keV. SIGMA/Granat discovered several hard X-ray sources near the Galactic Center.
| Granat | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1989 Dec 1 | 2020:57 | Launch by Proton-K | KB |
| Stage 3 ignition | |||
| 2030 | Stage 3 cutoff | ||
| 2030 | Stage 3 sep | ||
| 2035? | Blok D burn 1 | ||
| 2038? | Blok D MECO, LEO | 107.56 224 x 2003 x 51.5 | |
| 2124? | Blok-D-M ignition 2 | ||
| 2124? | SOZ sep | ||
| 2131 | MECO-2 | ||
| 2131:22 | Blok-D-M sep | 5928.031 1764 x 202481 x 51.9 | |
| 5903.648 1956 x 201693 x 52.12 | |||
| 1989 Dec 2 | 1608? | Pass EL1:4 | |
1991 Sep 18 | 5894.01 20804 x 182610 x 81.97 | ||
| 1994 Sep | Begin sky survey | ||
| 1998 Nov 27 | 0602 | end of ops | 5901.68 6128 x 197474 x 65.51 |
| 1999 May 25 | reentered? | ||
Payload:
- SIGMA SIGMA gamma ray telescope 30 keV-2 MeV Systeme d'Imagerie Gamma a masque aleatoire (CNES)
- Konus GRB monitor 20 keV-2MeV
- Podsolnukh (Sov/Bulg.) 2-25 keV rotating platform, triggered by Konus
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