1983-058A
The ECS 1 (European Communications Satellite 1) was built for ESA by the British Aerospace BAe/MESH consortium, based on the OTS/MARECS bus.
In 1983 Oct ownership of ECS 1 was transferred from ESA to the European Telecommunications Satellite Organization (EUTELSAT) and it was later renamed Eutelsat I F-1.
In Sep 1984, ECS 1 suffered a partial power loss due to short circuits in the solar panels.
In 1993 it was planned to move F1 from 25.5E to 36E to improve Central Asian communications.
| ECS 1 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1983 Jun 16 | 1159:03 | Launch by Ariane 1 (L6) | CSG ELA1 |
| T+2:26 St 1 MECO | |||
| T+2:30 St 1 sep | |||
| T+2:31 St 2 MES | |||
| T+2:38 Stage 2 acceleration rockets jettison | |||
| T+4:14 Fairing | |||
| T+4:47 St 2 MECO | |||
| T+4:52 St 2 sep | -4550 x 290 x 9 | ||
| T+4:56 St 3 burn 9:18 | |||
| T+5:07 Jettison of st 3 accel rockets | |||
| T+5:23 Stage 2 LOS | |||
| 1213:17 | T+14:14 St 3 MECO | 627.09 214 x 35566 x 8.6 | |
| 1214:54 | ECS 1 sep (T+15:41) | ||
| 1214:46? | T+15:43 Sylda 1 sep | ||
| 1216:52 | Amsat sep (T+17:41) | ||
| 1983 Jun 17 | 626.79 208 x 35557 x 8.6 | ||
| 1983 Jun 18 | 0051:50 | ECS 1 Mage 2 burn 20s | |
| 0052:10 | Mage 2 burnout 1.516 km/s | ||
| 0221 | Begin spindown | ||
| 0800 | 3-axis, arrays deployed | ||
| 1009 | Earth acquired | ||
| 1983 Jun 19 | Orbit adjust | ||
| 1983 Jun 19 | 1429.89 35457 x 35873 x 0.1 GEO 27.8W+1.6E | ||
| 1983 Jul 5 | 1427.50 35197 x 36039 x 0.1 GEO 6.2E+2.1E | ||
| 1983 Jul 6 | Braking | ||
| 1983 Jul 7 | 1158 | Move in, on station | GEO 10E |
| 1983 Jul 8 | Control to ECS SCC Redu | 1435.91 35775 x 35790 x 0.0 GEO 10.0E | |
| 1983 Jul 10 | Comms payload on | ||
| 1983 Sep 27 | mv out | 1436.11 35774 x 35798 x 0.0 GEO 10.0E | |
| 1983 Oct 11 | 1436.03 35774 x 35796 x 0.0 GEO 13.0E | ||
| 1983 Oct 12 | Ownership from ESA to EUTELSAT | ||
| 1984 Jan 10 | 1436.09 35772 x 35800 x 0.0 GEO 13.0E | ||
| 1984 Sep 30 | Short circuit | ||
| 1985 Aug 15 | 1436.03 35762 x 35808 x 0.0 GEO 13.0E | ||
| 1986 Oct | GEO 13E | ||
| 1987 May 13 | 1436.04 35766 x 35804 x 0.0 GEO 13.0E | ||
| 1988 Mar 6 | 1436.05 35772 x 35799 x 0.1 GEO 13.1E | ||
| 1989 Feb 26 | 1435.99 35733 x 35835 x 0.0 GEO 13.0E | ||
| 1989 Mar | move to 16E | ||
| 1989 May 1 | 1436.03 35598 x 35972 x 0.0 GEO 15.3E | ||
| 1989 Jun 6 | 1436.05 35707 x 35863 x 0.1 GEO 16.2E | ||
| 1990 Jul 15 | 1436.05 35447 x 36123 x 0.9 GEO 16.8E | ||
| 1991 Jun 22 | 1436.05 35740 x 35831 x 1.7 GEO 16.2E | ||
| 1991 Oct 31 | out | 1435.94 35772 x 35794 x 2.0 GEO 16.6E+0.03E | |
| 1991 Dec 10 | in | 1436.04 35594 x 35976 x 2.1 GEO 17.3E | |
| 1992 Jan 30 | 1436.02 35759 x 35810 x 2.2 GEO 17.5E | ||
| 1992 Feb 21 | mv out | 1436.01 35771 x 35798 x 2.3 GEO 17.6E+0.01E | |
| 1992 Jul 1 | mv in | 1436.03 35735 x 35834 x 2.6 GEO 25.4E | |
| 1992 Sep 29 | 1436.07 35769 x 35802 x 2.8 GEO 25.5E | ||
| 1993 Aug 20 | 1436.00 35783 x 35786 x 3.6 GEO 25.7E | ||
| 1993 Sep 5 | mv out | 1435.92 35773 x 35792 x 3.6 GEO 26.2E+0.04E | |
| 1993 Dec 13 | 1434.73 35747 x 35772 x 3.8 GEO 48.0E | ||
| 1993 Dec? | mv in | GEO 48E | |
| 1994 Mar 8 | 1436.35 35776 x 35806 x 4.0 GEO 48.0E | ||
| 1995 May 12 | 1436.04 35768 x 35802 x 4.9 GEO 48.0E | ||
| 1996 Jan 19 | mv out | 1436.05 35777 x 35794 x 5.4 GEO 48.0E | |
| 1996 Mar 12 | mv in | GEO 36E | |
| 1996 Mar 21 | mv in | 1436.05 35772 x 35799 x 5.5 GEO 36.0E | |
| 1996 Dec 8 | 1436.03 35764 x 35806 x 6.0 GEO 36.1E | ||
| 1996 Dec 11 | Orbit raised | ||
| 1996 Dec 30 | 1456.48 36156 x 36212 x 6.0 | ||
| 1997 Apr 12 | 1456.42 36150 x 36217 x 6.2 | ||
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