Astra 2D

 2000-081A

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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