1988-109A
The Skynet 4B satellite was launched on 1988 Dec 11 by Ariane. It was built by BAe Stevenage with a Marconi Space Systems (Portsmouth) comms payload. In 1990 it was moved from 1W to 53E. The satellite was retired in Jul 1998.
| Skynet 4B | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1988 Dec 11 | 0033 | Launch by Ariane (V27) | CSG ELA2 |
| T+0:03 PAP on | |||
| T+1:06 PAP sep | |||
| T+2:29 PAL sep | |||
| T+3:34 St 1 sep | |||
| T+3:36 St 2 MES | |||
| T+4:45 Fairing | |||
| T+5:45 St 2 sep | |||
| T+5:49 St 3 MES | |||
| 0051:30 | T+17:49 St 3 MECO | ||
| 0053:48 | T+20:07 Skynet 4B sep | ||
| 0056:07 | T+22:26 SPELDA sep | ||
| 0057:58 | T+24:17 Astra 1A | 220? x 35550? x 6.7 | |
| 1988 Dec 13 | 2029? | AKM | |
| 1988 Dec 13 | 1404.97 34427 x 35923 x 3.1 GEO 136.8W+8.0E | ||
| 1989 Jan 3 | 1413.24 34886 x 35789 x 3.0 GEO 9.3W+5.8E | ||
| 1989 Jan 8 | 1436.08 35776 x 35796 x 3.0 GEO 1.2W | ||
| 1989 Feb 8 | 1436.06 35777 x 35794 x 2.9 GEO 1.0W | ||
| 1990 Jun 21 | 1436.05 35776 x 35795 x 1.7 GEO 0.9W | ||
| 1990 Jul | mv out | ||
| 1990 Jul 18 | 1436.26 35777 x 35802 x 1.7 GEO 2.6W+0.05W | ||
| 1990 Aug 12 | 1431.16 35680 x 35699 x 1.5 GEO 52.8E+1.2E | ||
| 1990 Aug? | mv in at 53E | ||
| 1990 Sep 13 | 1436.08 35729 x 35843 x 1.5 GEO 53.0E | ||
| 1991 Jan 13 | spurious? | 1436.06 35758 x 35813 x 1.2 GEO 55.8E | |
| 1991 Mar 21 | 1436.07 35778 x 35793 x 1.0 GEO 53.0E | ||
| 1992 Aug 15 | 1436.05 35768 x 35802 x 0.3 GEO 52.9E | ||
| 1993 Aug 9 | 1435.93 35742 x 35824 x 1.2 GEO 53.3E | ||
| 1996 May 16 | 1436.07 35776 x 35795 x 3.3 GEO 53.0E | ||
| 1998 Jun 16 | 1435.95 35778 x 35789 x 4.8 GEO 53.7E | ||
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