1978-118A
The first 11F662 Gorizont satellite was launched on 1978 Dec 19 by 8K82K Proton from Baikonur. The Blok-DM upper stage malfunctioned, leaving Gorizont No. 11 in an elliptical 1420.0 min, 22580 x 48365 km x 11.3 deg orbit. Later burns of the satellite propulsion system raised the period to the synchronous value but not enough fuel was available to reduce the inclination. The satellite was used for various engineering tests.
| Gorizont No. 11 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1978 Dec 19 | 1215 | Launch by Proton | KB |
| 1224? | Stage 3 sep | 173 x 190 x 51.6 | |
| 1332? | Blok-DM burn 1 | ||
| 1848? | Blok-DM burn 2 | ||
| 1849? | Blok-DM malfunction | ||
| 1852? | Blok-DM No. 17L sep | 1420.0 22580 x 48365 x 11.3 | |
| 1979 Jan | 1453.0 | ||
| 1979 Feb 2 | 1436.05 22616 x 48954 x 11.3 GEO 52.7E | ||
| 1979 Mar | 1436.1 22553 x 49023 x 11.3 | ||
| 1979 May | GEO 52E | ||
| 1979 Jun | GEO 53E | ||
| 1979 Sep | GEO 53E | ||
| 1979 Sep 23 | 1435.98 22480 x 49088 x 11.0 GEO 50.7E | ||
| 1980 Jan 10 | end of ops | ||
| 1980 May | 1471 min | ||
| 1980 Dec | GEO 95E dr | ||
| 1981 May 7 | 1436.45 21918 x 49668 x 10.5 | ||
| 1981 May | GEO 90E dr | ||
| 1982 Sep | GEO 58E dr | ||
| 1983 Jun | GEO 90E dr | ||
| 1985 Jun | GEO 61E dr | ||
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