Inmarsat 203

 1991-084B

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The Inmarsat II F-3 satellite was placed at 178E to be the POR satellite.

Inmarsat II F-3
Date	Time	Event	Orbit
1991 Dec 16	2319:48	Launch by Ariane (V48)	CSG ELA2
		T+2:27 PAL sep
		T+3:32 St 1 sep
		T+3:35 St 2 MES
		T+4:05 Fairing
		T+5:43 St 2 sep
		T+5:48 St 3 MES
	2337:38	T+17:50 St 3 MECO
	2339:54	T+20:06 Telecom 2A sep
	2342:12	T+22:24 Spelda sep
	2344:21	T+24:33 Inmarsat 2F3 sep
			645.25 362 x 36351 x 3.8
1991 Dec 18?	1130?	LAM-1
1991 Dec 18			715.62 4443 x 35804 x 3.5
1991 Dec 22	2350?	LAM-2
1991 Dec 23			1431.65 35583 x 35816 x 2.6 GEO 155.4E+1.1E
1991 Dec 24			1435.96 35743 x 35824 x 2.7 GEO 155.4E
1992 Jan 5			1435.48 35739 x 35809 x 2.7 GEO 156.5E+0.1E
1992 Jan ?		Arrive 178E
1993 Mar 28			1436.06 35775 x 35796 x 1.8 GEO 178.9E
1993 Jul 18			1436.04 35774 x 35796 x 1.6 GEO 178.0E
1995 Aug 19			1436.04 35777 x 35793 x 0.5 GEO 178.0E
1996 Dec 10			1436.02 35768 x 35801 x 0.3 GEO 178.1E
1997 Feb 14			1436.10 35769 x 35804 x 0.3 GEO 179.9E
1997 Feb		Move to IOR
1997 Mar 19			1436.10 35772 x 35800 x 0.3 GEO 65.1E
1997 Jul 20			1436.12 35732 x 35841 x 0.5 GEO 64.8E
1999 Jun 10			1436.07 35773 x 35798 x 0.8 GEO 65.0E
2001 Sep 20			1436.07 35776 x 35796 x 1.2 GEO 65.0E
2001 Sep 22		mv out
2001 Dec 3			1429.26 35639 x 35666 x 1.4 GEO 169W+1.7E
2001 Dec 19		mv to 142W	1429.18 35635 x 35666 x 1.4
2002 Jan 3			1436.05 35768 x 35802 x 1.4 GEO 142.0W
2002 Aug 18			1436.03 35773 x 35797 x 2.0 GEO 142.0W

USA-138

 1998-016A

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UHF F/O F8 is the first of the Block III satellites. UHF F8 to F10 carry a high data rate relay package and a TV direct broadcast payload, replacing the SHF transponders. The high capacity USN Global Broadcast Service (GBS) will decrease the time it takes for US forces to receive imagery information.  F8 also has an extra solar panel on each solar array wing. Launch mass is 3200 kg, BOL mass 1540 kg.

F8 will be stationed at 172E/Pacific, replacing FLTSATCOM 4. Control is by 3rd SOS/Falcon until 1999, when NSOC/Pt Mugu takes over. Launch is by the last Atlas 2, using the 14-foot fairing, with an MRS (minimum residual shutdown) transfer orbit.

UHF F/O F8
Date	Time	Event	Orbit
1998 Mar 16	2132	Launch by Atlas 2 AC-132	CC LC36A
		T+2:46 BECO
		T+2:49 Booster sep
		T+3:35 PLF sep
		T+4:34 SECO
		T+4:36 Atlas sep
		T+4:58 MES-1
	2143	T+11:39 MECO-1	159 x 867 x 28.2
	2157	T+25:56 MES-2
	2159	T+27:28 MECO-2	222 x 23442 x 27.0
	2202	T+30:56 Centaur sep
1998 Mar 16			415.43 219 x 23910 x 26.9
1998 Mar 18	1530?	LAM-1 perigee
1998 Mar 18			511.81 203 x 29430 x 26.9
1998 Mar 19	0030?	LAM-2 perigee
1998 Mar 19			541.52 226 x 31031 x 26.9
1998 Mar 20	0300?	LAM-3 perigee
1998 Mar 20			639.49 273 x 36144 x 26.9
1998 Mar 20	1900?	LAM-4 apogee
1998 Mar 21			643.93 516 x 36130 x 26.4
1998 Mar 21	1400?	LAM-5 apogee
1998 Mar 21			1158.99 24226 x 36116 x 7.2
1998 Mar 23	0900?	LAM-6 apogee
1998 Mar 24			1432.43 35268 x 36161 x 6.0 GEO 178.5W+0.9E
1998 Apr 1			1435.79 35477 x 36083 x 6.0 GEO 170.7W+0.07E
1998 May 1			1436.27 35484 x 36095 x 6.0 GEO 171.5W+0.05W
1998 Jun 28			1436.08 35769 x 35802 x 5.9 GEO 171.2E
1999 Jul 25			1435.94 35772 x 35794 x 5.2 GEO 172.3E

Maclean’s: December 9,2002

 https://welib.org/md5/6de5394707b652babe2c9556459aa0eb