April 9,2000

https://web.archive.org/web/20080504034924/http://digest-archive.degrassi.ca/DD91.htm

DFH-45

 1997-029A

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The FY-2 weather satellite was launched in Jun 1997 after a long delay caused by the explosion of the first flight model during testing.

The spin-stabilized FY-2 was built by the Shanghai Aerospace Technology Research Institute and had a mass of 1380 kg. It will be stationed at 105E and controlled from the Xi'an control center. The satellite is a 2.1m dia 4.5m high cylinder with antenna deployed and AKM attached. The main bus is 2.1 dia 1.6m high, with antenna but without AKM it is 3.0m high. The FG-36 AKM is a cylinder-cone 1.5m high 1.0m dia and 729 kg full 70? empty, leaving a BOL mass for FY-2 of 651 kg. AKM Burn time is 43s, Isp 289.0. After the AKM fires and is ejected, an imager cover is also ejected into near-GEO.

FY2
Date	Time	Event	Orbit
1997 Jun 10	1201	Launch by CZ-3	XSC
		T+2:06 St 1 MECO
		T+2:07 St 2 burn
		T+4:15 St 2 MECO
		T+4:19 Fairing sep
		T+4:22 St 2 VECO
		T+4:23 Stage 3 burn
	1212	T+11:08 MECO-1
	1216	T+15:35 MES-1
	1221	T+20:53 Stage 3 MECO-2
	1222	T+21:32 Stage 3 sep
1997 Jun 10			635.12 206 x 35987 x 28.5
1997 Jun 10			141 x 36043 x 27.8 (R/B?)
1997 Jun 11	0418?	AKM burn
1997 Jun 11	0430?	AKM separated	1399.72 34099 x 36044 x 0.3
1997 Jun 11			1396.45 34015 x 35998 x 1.3
1997 Jun 11			1403.34 34069 x 36216 x 1.3 GEO 114.9E+8.4E
1997 Jun 17			1436.08 35780 x 35792 x 1.2 GEO 105.0E
1997 Jul 10			1436.01 35781 x 35788 x 1.1 GEO 104.1E
1999 Oct 13			1436.09 35784 x 35788 x 0.7 GEO 104.8E
2000 Apr 23		Moved out	1548.33 35773 x 36278 x 0.1 GEO 104E dr
2000 May 10		mv in	GEO 85.5E
2000 Jun 11			1436.15 35767 x 35807 x 0.3 GEO 85.6E
2004 Feb 14			1436.07 35784 x 35787 x 3.5 GEO 87.2E

USA-194

 2007-027A

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AV-009 Atlas V 401 from SLC41.

3250 kg each?

NOSS launch codenamed 'PYXIS'. The Centaur second burn had a problem and the payload was delivered to a lower than planned orbit; it was expected that on board propulsion would let the mission reach its planned orbit, assumed to be 1150 km x 63 deg.

After the first Centaur burn, a valve failed to close and fuel leaked out during the coast phase, leading to early fuel depletion during the second burn.

The UN-released orbit was 714 x 953 km x 63.3 deg. The 2009 EELV Cape history by M. Cleary spun the issue as 'there was some loss in performance during the second stage burn, but the payload was launched successfully'. Nevertheless the orbit achieved was signicicantly different from the desired one and I count this flight as a launch failure for statistical purposes.

NROL-30
Date	Time	Event	Orbit
2007 Jun 15	1512:00	Launch by Atlas AV-009	CC SLC41
		Ascent on Az 46.85
		Atlas MECO
		T+4:15? Atlas sep
		T+4:23? Centaur MES-1
		T+4:38? Fairing
	1530?	T+18 min? Centaur MECO-1
	1629?	T+1:17? Centaur MES-2
		Centaur premature shutdown
	1630?	T+1:18? Centaur MECO-2	105.22 783 x 1225 x 63.6
	1634?	T+1:22? Payload sep
		Centaur blowdown	101.57 715 x 951 63.4
2007 Jun 18			105.45 847 x 1183 x 62.7
2007 Aug 11			106.08 904 x 1186 x 63.4
2008 Feb 17			107.36 997 x 1211 x 63.4
2008 Jun 10		Orbit raise to operational alt	107.41 1014 x 1198 x 63.4
2009 Apr 26			107.42 1033 x 1181 x 63.4

March 29,1998

 https://web.archive.org/web/20080504032647/http://digest-archive.degrassi.ca/DD17.htm