https://web.archive.org/web/20070807073255/http://digest-archive.degrassi.ca/DD145.htm
Saturday, December 29, 2007
Wednesday, December 26, 2007
Astra 2D
2000-081A
BSS 376HP at 28.2E. Launch 2000 late. Launch mass 1414 kg. Size 8m high 2.2m dia.
The V138 Ariane 5G had EPS, ASAP-5/LDREX, ACU/GE-5, SYLDA, Astra 2D.
Astra 2D will serve the British Isles.
Assume that the apogee burn was Dec 23 0800 over 42E. In 5.4 days it had moved to 24E, so -3.3 deg/d. Simulate a burn at Dec 28 0800 over 24.7E to 3.46deg/d: 6m/s does the trick. Get good agreement with transfer orbit. However, a late transfer orbit elset on Dec 30 suggests the possibility of an apogee burn at that time.
| Astra 2D | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2000 Dec 20 | 0026 | Launch by Ariane 5 | CSG ELA3 |
| T+2:40 EAP sep | |||
| T+3:24 Fairing sep | |||
| 0036 | T+10:06 EPC cutoff | ||
| 0036 | T+10:12 EPC sep | 59 x 1839 x 6.6 | |
| 0036 | T+10:27 EPS MES | ||
| 0052 | T+26:55 EPS MECO | ||
| 0054 | T+28:44 Astra 2D sep | ||
| 0057 | T+31:20 Sylda 5 sep | ||
| 0100 | T+34:40 GE-8 sep | ||
| 0106 | T+40:15 LDREX deploy | ||
| 0130 | T+1:04:37 LDREX sep | ||
| 0210? | EPC reentry | ||
| 2000 Dec 20 | 630.58 185 x 35775 x 2.0 | ||
| 2000 Dec 21 | 1838? | Orbit raise | |
| 2000 Dec 22 | 633.82 292 x 35835 x 2.2 | ||
| 2000 Dec 23 | 0800? | AKM | |
| 2000 Dec 28 | 1441.44 35886 x 35895 x 0.3 GEO 24.1E | ||
| 2000 Dec 30 | 0900? | late possible AKM | |
| 2000 Dec 31 | 1436.22 35763 x 35814 x 0.3 GEO 24.0E | ||
| 2001 Jan 18 | 1434.18 35744 x 35753 x 0.1 GEO 26.7E+0.5E | ||
| 2001 Mar 17 | 1436.05 35732 x 35838 x 0.1 GEO 28.1E | ||
| 2006 Jul 28 | 1436.16 35770 x 35804 x 0.1 GEO 28.2E | ||
Tuesday, December 25, 2007
Monday, December 24, 2007
Sunday, December 23, 2007
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