Skynet 4A

 1990-001A

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The Skynet 4 series were built by British Aerospace and Marconi, using the ECS bus.

Skynet 4A
Date	Time	Event	Orbit
1990 Jan 1	0007	Launch by Commercial Titan 3	CC LC40
	0008:49	Stage 1 ignition
	0009	SRM sep
	0011:27	Stage 2 ignition
	0011:38	Fairing sep
	0015:06	Stage 2 shutdown	165 x 612 x 28.6
	0118:52	Skynet 4A deployed
	0205?	PAM-D2 burn to GTO
	0207?	PAM-D2 burnout
	0210?	PAM-D2 sep
	0830?	Apo 1 over 58E
	1230?	Peri 1
	1900?	Apo 2 over 96W
	2230?	Peri 2
1990 Jan 2	0500?	Apo 3 over 110E
	0900?	Peri 3
	1500?	Apo 4 over 42W
	1900?	Peri 4
1990 Jan 3	0044?	AKM burn over 167E
	0130?	Apo 5 over 162E
1990 Jan 3			1380.42 33675 x 35703 x 3.4 GEO 170.1E+14.5E
1990 Jan 10			1382.67 33673 x 35794 x 3.4 GEO 80.8W+13.9E
1990 Jan 16			1419.99 35133 x 35808 x 3.4 GEO 42.1W+4.1E
1990 Jan 20			1428.19 35453 x 35809 x 3.4 GEO 27.1W+2.0E
1990 Jan 29			1427.54 35449 x 35788 x 3.4 GEO 7.8E+2.2E
1990 Feb 17			1436.12 35781 x 35793 x 3.4 GEO 6.0E
1990 Dec 10			1436.03 35652 x 35918 x 2.7 GEO 6.2E
1990 Dec 26		mv out
1991 Jan 11		mv in	1436.00 35731 x 35838 x 2.7 GEO 29.5E
1991 Mar 24			1436.03 35769 x 35800 x 2.6 GEO 29.5E
1991 Jun 20			1435.99 35732 x 35836 x 2.4 GEO 29.6E
1991 Jul 7			1436.03 35497 x 36073 x 2.5 GEO 29.2E
1991		Move to 65E?
1991 Oct 4			1435.71 35625 x 35932 x 2.8 GEO 65.4E+0.1E
1991 Oct 14			1435.73 35620 x 35738 x 3.0 GEO 65.6E
1991		Move to 34W
1992 Jan 3			1436.00 35771 x 35797 x 2.2 GEO 34.0W
1992 May 2			1436.12 35784 x 35789 x 2.0 GEO 34.0W
1994 Apr 30			1436.15 35774 x 35800 x 1.7 GEO 34.1W
1997 Oct 15			1436.12 35772 x 35801 x 3.0 GEO 34.0W
1999 Jun 16			1436.09 35782 x 35791 x 3.8 GEO 34.0W
2000 Sep 5			1436.11 35774 x 35798 x 5.6 GEO 34.5W