USA-173

 2003-054A

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A new ocean surveillance SIGINT was launched in Dec 2003 on MLV-14. The Centaur IIA has two RL10A-4-1B engines. The unclassified launch name was Libra. Two satellites were deployed, rather than the expected three, confirming the new Atlas-launched system was a different design to its predecessors.

The satellites each made a stationkeeping burn to join the operational constellation on 2004 Mar 24.

NRO
Date	Time	Event	Orbit
2003 Dec 2	1004	Launch by Atlas IIAS AC-164	V SLC3E
		T+0:57 SRB 3-4 on
		T+1:59 SRB 1-2 sep
		T+2:02 SRB 3-4 sep
		T+2:43 BECO
		T+2:47 Booster sep
		T+3:29 Fairing sep
		T+4:33 SECO
		T+4:35 Atlas sep	-5558 x 200 x 63.7
		T+4:52 MES1
	1014	T+10:36 MECO1	166 x 1209 x 61.1
		T+1:10:05 MES2 17s
	1114	T+1:10:22 MECO2	1008 x 1208 x 63.4
	1118	T+1:14:05 Centaur sep	1005 x 1218 x 63.5 (UN)
		? Payload 2 separates
2004 Mar 23			107.415 1016 x 1197 x 63.4
2004 Mar 24		Stationkeeping burn
2004 Mar 24			107.426 1016 x 1198 x 63.4

May 29,2003

 https://planet4589.org/space/jsr/back/news.500.txt

Resourcesat 1

 2003-046A

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IRS-P6, or Resourcesat-1, was launched on PSLV in 2003. It replaces IRS-1C and IRS-1D, carrying three improved cameras and a solid state recorder.

The PSLV-C5 launch switched the PSOM burn sequence to four ground lit and two air lit instead of the other way around.

Mass 1360 kg.

\impha{2.5}{90}

• images/03046A

Resourcesat
Date	Time	Event	Orbit
2003 Oct 17	0452	Launch by PSLV-C5
		T+0:25 Air PSOM 5-6 on
		T+1:08 Ground PSOM 1-4 sep
		T+1:30 Air PSOM sep
		T+1:52 PS1 sep
		T+1:53 PS2 on
		T+2:37 Fairing sep at 118 km
		T+4:25 PS2 sep
		T+4:27 PS3 on
		T+6:29 PS3 sep 426 km
		T+9:00 PS4 MES, 621 km
	0509	T+17:23 PS4 MECO
	0510	T+18:00 PS4 sep
2003 Oct 18			101.69 802 x 875 x 98.7

Payload:

• LISS-3 Medium res VNIR/SWIR Multispectral camera, 4 bands; 140 km swath, 23m res

• LISS-4, High res VNIR camera, 70 km swath, 6m res; 3 bands

• AWIFS-A/B Advanced Wide Field Sensor VNIR/SWIR 740 km swath, 56m res.