Intelsat 21

 2012-045A

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Intelsat satellite to cover N America, Mexico, Brazil. Boeing BSSI 702MP. Replaces IS-9. The Zenit-3SL third stage made an unusual single burn to GTO. Launch mass 5984 kg; size 6.9 m x 9.3m x 36.9m span.

IS-21
Date	Time	Event	Orbit
2012 Aug 19	0654:59	Launch by Zenit-3SL No. SL34
		T+2:30 St 1 sep 70 km
		T+3:44 Fairing sep, 118 km
	0703:30	T+8:31 St 2 sep	-2314 x 213 x 0
		T+8:41 DM-SL burn 1
	0715:16	T+20:17 DM-SL MECO	276 x 35958 x 0
	0725:06	T+30:07 DM-SL sep
		T+5:33:13 Apogee	280 x 35786 x 0
2012 Aug 20			628.50 273 x 35580 x 0.1
2012 Aug 21			746.01 6014 x 35723 x 0.4
2012 Aug 23			969.08 16394 x 35726 x 0.2
2012 Aug 25			968.49 16372 x 35722 x 0.2
2012 Aug 26			1421.55 35214 x 35787 x 0.1
2012 Aug 29			1436.17 35785 x 35790 x 0.1 GEO 51.4W
2012 Sep 17			1436.11 35781 x 35791 x 0.1 GEO 51.3W