NRO signals intelligence missions
Jumpseat 1-4 (1971-1975) were highly elliptical satellites
Flight Designation Date LV Orbit km x km x deg
[First generation: Jumpsat]
1 - 1971 Mar 21 Titan 23B/Agena 328 x 39264 x 63.2
2 - 1972 Feb 16 Titan 23B/Agena Failed to orbit
3 - 1973 Aug 21 Titan 23B/Agena 392 x 39132 x 63.3
4 - 1975 Mar 10 Titan 34B/Agena 295 x 39338 x 63.5
5 - 1978 Aug 5 Titan 34B/Agena 315 x 39053 x 62.5
6 - 1981 Apr 24 Titan 34B/Agena Orbital data unknown
7 USA 4 1984 Aug 28 Titan 34B/Agena 342 x 38347 x 63.6
[Second generation: SDS]
8 USA 103 1994 May 3 Titan 401A/Centaur 1551 x 38802 x 63.1
9 USA 112 1995 Jul 10 Titan 401A/Centaur 1575 x 38780 x 63.4
10 USA 136 1997 Nov 8 Titan 401A/Centaur 1960 x 38395 x 63.4
[Third generation: NROL]
11 USA 184 2006 Jun 28 Delta 4M+(4,2) 1139 x 39210 x 63.3
12 USA 200 2008 Mar 13 Atlas V 411 Orbit to be determined
Ref.: #7(JR593) - update: 19.10.08