1993-078B
Thaicom 1 was the first lightweight HS-376L model, using a Star 30BP solid apogee motor and with a dry mass of only 436 kg. The satellite carried 644 kg of fuel at launch, with 193 kg remaining at BOL, for masses of 1080 kg and 629 kg respectively. The HS-376L satellite was 2.16m in dia, 2.6 m high at launch, with a height of 6.7 m after deployment of the solar panel skirt and antennas.
Thaicom was built for the Shinawatra Satellite Co, Bangkok, Thailand, a subsidiary of the Shinawatra Computer and Communications Group (SC&C;). It was launched as a Spelda Dedicated Satellite payload (SDS) on Ariane. The Ariane SPELDA, VEB and associated equipment had a mass of 1353 kg, and the dry mass of the H10+ third stage was 1242 kg.
In Jul 1997 Thaicom 1 was moved to 120E and renamed Thaicom 1A.
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| Thaicom 1 |
| |
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| Date | Time | Event | Orbit |
|---|
|
| 1993 Dec 18 | 0127 | Launch by Ariane | |
| 1993 Dec 18 | 0129 | PAL sep (2:21) |
| | 0130 | St 1 sep (3:32) |
| | 0131 | Fairing sep (4:31) |
| | 0132 | St 2 sep (5:44) |
| | 0132 | St 3 TIG (5:49) |
| | 0145 | St 3 MECO (18:13) |
| | 0148 | DBS 1 sep (21:37) |
| | 0150 | Mini-Spelda top sep (23:07) |
| | 0152 | Thaicom 1 sep (25:11) |
| | 0152 | H10+ sep burn (25:13) |
| | 0156 | H10+ end of mission (29:12) |
| | 0730? | Apo 1 at 88E |
| | 1230? | Peri 1 |
| | 1800? | Apo 2 at 71W |
| | 2300? | Peri 2 |
| 1993 Dec 19 | 0500? | Apo 3 at 125E |
| 1993 Dec 19 | | | 638.97 214 x 36177 x 3.9 |
| | 1000? | Peri 3 |
| | 1530? | Apo 4 at 33W |
| | 2000? | Peri 4 |
| 1993 Dec 20 | 0200? | Apo 5 at 170E |
| | 0700? | Peri 5 |
| | 1230? | Apo 6 at 9E |
| | 1730? | Peri 6 |
| | 2300? | Apo 7 at 150W |
| 1993 Dec 21 | 0430? | Peri 7 |
| | 1000? | Apo 8 at 48E |
| 1993 Dec 21 | 0943? | Star 30BP burn | 1403.92 34093 x 36215 x 0.1 GEO 49.9E+8.3E |
| 1993 Dec 22 | | | 1378.17 33927 x 35362 x 0.4 GEO 56.4E+15.2E |
| 1993 Dec 23 | 2200? | mv in |
| 1993 Dec 26 | | | 1436.10 35771 x 35802 x 0.1 GEO 78.6E |
| 1994 Jan 14 | | | 1436.11 35765 x 35808 x 0.1 GEO 78.5E |
| 1997 Mar 10 | | | 1436.10 35762 x 35811 x 0.0 GEO 78.4E |
| 1997 Jul | | mv out | GEO 78E |
| 1997 Jul 31 | | | GEO 119E |
| 1997 Aug 17 | | | 1436.13 35781 x 35793 x 0.0 GEO 120.0E |
| 1999 Oct 17 | | | 1436.07 35781 x 35790 x 0.1 GEO 120.1E |
| 2002 Aug 3 | | | 1436.11 35781 x 35792 x 0.1 GEO 120.0E |