Intelsat 4A6

 1978-035A

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The final IVA to be launched was F-6, in Mar 1978. It was stationed over the Indian Ocean, and in late 1978 replaced IV F-1 as the IOR Primary satellite.

Intelsat 4A F-6
Date	Time	Event	Orbit
1978 Mar 31	2336:01	Launch by Atlas Centaur	CC LC36
		T+2:20 BECO
		T+2:23 Booster sep
		T+3:05 Insulation panels sep
		T+4:02 SECO
		T+4:09 Atlas sep
		T+4:19 MES-1
		T+4:31 Fairing
	2346	T+10:20 MECO-1 189 km vrel 7.786
1978 Apr 1	0000	T+24:53 MES-2 559 km vrel 7.320
	0001	T+25:29 MECO-2 628 km
	0004	T+28:34 Centaur sep	641.03 549 x 35949 x 21.85 (RAE)
	0011	T+35:34 end blowdown
	0600?	Apo 1 85E
	1600?	Apo 2 71W
1978 Apr 2	0300?	Apo 3 130E
	0230?	AKM (speculative) over 130E
1978 Apr 13			1436.13 35731 x 35843 x 0.3 GEO 154.9E+0.02W
1978 May 25			1446.89 35980 x 36014 x 0.3 GEO 112.7E+2.7W
1978 Jun 8			1447.01 35979 x 36020 x 0.2 GEO 74.6E+2.7W
1978 Jun 22		mv in	1436.13 35773 x 35801 x 0.2 GEO 62.9E
1978 Sep 30			GEO 62.9E
1978 Nov 19		Replaced IV F-1
1979 Jan		IOR Primary	GEO 63E
1980 Nov 12			1435.95 35778 x 35789 x 0.1 GEO 63.8E
1982 Sep 12			1436.21 35778 x 35799 x 0.1 GEO 62.9E
1982 Sep 22		mv out	GEO 63E
1982 Nov 18		mv in	1436.07 35781 x 35791 x 0.1 GEO 174.0E
1982 Dec		POR Primary	GEO 174E
1984 Mar 29			1436.12 35782 x 35791 x 0.0 GEO 173.9E
1985 Aug			GEO 174E
1986 Mar 1			1436.09 35783 x 35790 x 0.3 GEO 174.0E
1986 Mar 13			1436.09 35783 x 35790 x 0.3 GEO 173.9E
1986 Mar 18		mv out	1436.37 35781 x 35802 x 0.3 GEO 173.7E+0.08W
1986 Apr		mv out	GEO 174E
1986 Jun 12		mv in	1436.17 35775 x 35796 x 0.6 GEO 170.1E
1986 Oct 6			GEO 170.0E
1986 Dec 17			1436.01 35774 x 35795 x 1.0 GEO 170.1E
1986 Dec 29		Orbit raise	1438.13 35816 x 35836 x 1.0 GEO 164.0E+0.5W
1987 Aug 12			1437.55 35792 x 35838 x 1.6 GEO 47.1E+0.4W
1989 Mar 31			1437.6 35769 x 35860 x 1.7
1993 Dec 31			1435.2 35739 x 35797 x 7.3
1997 Feb 3			1435.32 35751 x 35791 x 9.3 GEO 16.29E+0.2/d