Comstar 1

  1976-042A

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The Comstar 1 satellite was an Intelsat 4A class C-band communications satellite intended for use by AT&T; for US domestic communications. It was originally owned by Comsat General Corp. and leased to AT&T.; AT&T; took ownership in 1985 of the Comstars, but by that time Comstar 1 was retired. Comsat General control was in Washington DC, with ground stations at Southbury, Connecticut and Santa Paula, California.

Comstar 1
Date	Time	Event	Orbit
1976 May 13	2228	Launch by Atlas Centaur
		T+2:20 BECO
	2230	T+2:23 Booster sep
		T+3:05 Insulation panel jettison
		T+4:06 SECO
	2232	T+4:09 Atlas sep
	2232	T+4:18 MES-1
	2233	T+4:30 Fairing
	2238	T+10:21 MECO-1 189 km
	2252	T+24:52 MES-2 1:26 5558 km
	2254	T+26:18 MECO-2
	2256	T+28:33 Centaur sep
		Centaur blowdown	649.32 611 x 36310 x 21.81
1976 May 14	0600?	Apo 1
	1600?	Apo 2
1976 May 15	0300?	Apo 3
	1400?	Apo 4
	2240?	Apo 5
1976 May 15	2242	SVM-4A Apogee motor fired
1976 May 16		GEO drifting	168.4E+3.2/d
1976 Jun 4		GEO on sta	128W
1977 Jan 25			1436.16 35776 x 35798 x 0.1 GEO 128.0W
1981 May 2			1436.09 35782 x 35790 x 0.0 GEO 127.9W
1981 May 7		Moved out of GEO	127W
1981 Jun 11		On station	95W+0.05/d
1981 Jul 3			1436.14 35782 x 35792 x 0.0 GEO 95.1W
1983 Oct 17			1436.10 35781 x 35791 x 0.0 GEO 96.0W
1983 Oct 26		mv out	1435.60 35729 x 35785 x 0.0 GEO 83.3W+0.3E
1983 Nov 29		mv in	1436.18 35782 x 35794 x 0.1 GEO 76.0W+0.0
1984 May 13			1436.10 35779 x 35793 x 0.2 GEO 76.0W
1984 Oct 24			1436.18 35787 x 35789 x 0.6 GEO 76.4W
1984 Oct 26		mv out	1442.0 35793 x 35814 x 0.6
1984 Nov 2			1442.63 35907 x 35922 x 0.6
1985 Sep 7		AT&T took ownership
1989 Nov 27			1442.45 35904 x 35916 x 5.4
1999 Apr 19			1442.50 35896 x 35927 x 11.7