SSF

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SSF

Part of P 11

OPS 1807
Credit: Manufacturer Image

American military signals intelligence satellite. ELINT satellite built by Lockheed for USAF, USA. Launched 1963 - 1964. Used P-11 bus.

AKA: AAS;Hitch Hiker;LOGACS;SGLS;SRV. Status: Operational 1963. First Launch: 1963-03-18. Last Launch: 1989-08-08. Number: 54 .

Subsatellite ferrets were a series of heavily classified small satellites, released in association with other military launches, that undertook radio and radar signals intelligence gathering. There seem to have been several types, but all details remain secret.

More at: SSF.

Family: Medium earth orbit, SIGINT. Country: USA. Launch Vehicles: Titan, Atlas, Thor, Delta, Atlas SLV-3 Agena D, Thor SLV-2A Agena D, Atlas Agena D, Thorad SLV-2G Agena D, Space Shuttle, Thorad SLV-2H Agena D, Titan IIID, Titan 34D. Launch Sites: Cape Canaveral, Vandenberg, Vandenberg SLC1W, Vandenberg SLC1E, Vandenberg SLC2W, Vandenberg SLC3W, Vandenberg SLC4W, Vandenberg SLC4E, Cape Canaveral LC39B. Agency: USAF. Bibliography: 172, 2, 278, 279, 6, 11829.

1963 March 18 - . 21:13 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Thor. Launch Vehicle: Thor SLV-2A Agena D. FAILURE: Failure.

P-11 No. 1 - . Payload: P-11 No. 1. Mass: 80 kg (176 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1963-03-18 . Ferret subsatellite aboard first launch of KH-6. Mission failed..

1963 June 27 - . 00:37 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Thor SLV-2A Agena D.

Hitch Hiker 1 - . Payload: P-11 No. 2. Mass: 80 kg (176 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 614 . COSPAR: 1963-025B. Apogee: 2,506 km (1,557 mi). Perigee: 323 km (200 mi). Inclination: 82.10 deg. Period: 114.10 min. Radiation data. First successful flight of P-11 bus, mainly used for radar signals intelligence gathering..

1963 October 29 - . 21:19 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Thor. Launch Vehicle: Thor SLV-2A Agena D.

Hitch Hiker 2 - . Payload: P-11 s/n A3. Mass: 80 kg (176 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1965-05-23 . USAF Sat Cat: 682 . COSPAR: 1963-042B. Apogee: 581 km (361 mi). Perigee: 288 km (178 mi). Inclination: 90.00 deg. Period: 93.30 min. Radar monitoring..

1963 December 21 - . 21:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Thor SLV-2A Agena D.

Hitch Hiker 3 - . Payload: P-11 s/n A4. Mass: 80 kg (176 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1964-11-07 . USAF Sat Cat: 719 . COSPAR: 1963-055B. Apogee: 394 km (244 mi). Perigee: 316 km (196 mi). Inclination: 64.50 deg. Period: 91.70 min. Radar monitoring..

1964 July 6 - . 18:51 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Atlas. Launch Vehicle: Atlas Agena D.

OPS 4923 - . Payload: EHH A3. Mass: 80 kg (176 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1965-01-03 . USAF Sat Cat: 826 . COSPAR: 1964-036B. Apogee: 505 km (313 mi). Perigee: 156 km (96 mi). Inclination: 92.90 deg. Period: 91.10 min. Radar monitoring..

1964 August 14 - . 22:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 3316 - . Payload: P-11 s/n 4202. Mass: 79 kg (174 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1979-03-08 . USAF Sat Cat: 851 . COSPAR: 1964-045B. Apogee: 3,751 km (2,330 mi). Perigee: 272 km (169 mi). Inclination: 95.70 deg. Period: 127.40 min. The first Atlas/Agena D standard launch vehicle (SLV-3, 7100 Series) was successfully launched from Vandenberg AFB. This vehicle, Number 7101, was the first Atlas booster to be designed and produced to fully standardized specifications. .

1964 October 23 - . 18:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4W. LV Family: Atlas. Launch Vehicle: Atlas Agena D.

SRV - . Nation: USA. Agency: USAF AFSC. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1965-02-23 . USAF Sat Cat: 914 . COSPAR: 1964-068xx. Apogee: 185 km (114 mi). Perigee: 185 km (114 mi). Inclination: 95.40 deg. Period: 88.20 min.

1965 April 28 - . 20:17 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 6717 - . Payload: EHH B1. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1969-10-31 . USAF Sat Cat: 1329 . COSPAR: 1965-031B. Apogee: 547 km (339 mi). Perigee: 506 km (314 mi). Inclination: 95.20 deg. Period: 95.10 min. Radar monitoring..

1965 June 25 - . 19:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 6749 - . Payload: EHH B2. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1968-08-22 . USAF Sat Cat: 1422 . COSPAR: 1965-050A. Apogee: 510 km (310 mi). Perigee: 496 km (308 mi). Inclination: 107.60 deg. Period: 94.70 min. Radar monitoring..

1965 August 3 - . 19:12 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 6761 - . Payload: EHH B3. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1968-06-17 . USAF Sat Cat: 1472 . COSPAR: 1965-062B. Apogee: 515 km (320 mi). Perigee: 501 km (311 mi). Inclination: 107.40 deg. Period: 94.80 min. Radar monitoring..

1965 November 8 - . 19:26 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 6232/Agena D - . Payload: Agena Pickaback / OPS 6232. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1965-11-09 . USAF Sat Cat: 1728 . COSPAR: 1965-090B. Apogee: 284 km (176 mi). Perigee: 155 km (96 mi). Inclination: 93.90 deg. Period: 88.90 min. Not identified as a subsatellite ferret by McDowell..

1966 January 19 - . 20:10 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 3179/Agena D - . Payload: Agena Pickaback / OPS 3179. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1966-01-23 . USAF Sat Cat: 1940 . COSPAR: 1966-002B. Apogee: 149 km (92 mi). Perigee: 120 km (70 mi). Inclination: 93.80 deg. Period: 87.20 min. Not identified as a subsatellite ferret by McDowell..

1966 March 18 - . 20:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 0974/Agena D - . Payload: NRL PL137 / OPS 0974. Mass: 2,000 kg (4,400 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1966-03-23 . USAF Sat Cat: 2112 . COSPAR: 1966-022B. Apogee: 285 km (177 mi). Perigee: 149 km (92 mi). Inclination: 101.00 deg. Period: 88.80 min. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1966 May 14 - . 18:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 6785 - . Payload: EHH B4. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1970-10-27 . USAF Sat Cat: 2172 . COSPAR: 1966-039B. Apogee: 555 km (344 mi). Perigee: 519 km (322 mi). Inclination: 110.00 deg. Period: 95.40 min. Radar monitoring..

1966 June 3 - . 19:25 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 1856/Agena D - . Payload: [AAS 6] / OPS 1856. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1966-06-09 . USAF Sat Cat: 2194 . COSPAR: 1966-048B. Apogee: 230 km (140 mi). Perigee: 148 km (91 mi). Inclination: 86.90 deg. Period: 88.20 min. Not identified as a subsatellite ferret by McDowell..

1966 August 16 - . 18:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 6810 - . Payload: SSF-B No. 5. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1970-03-05 . USAF Sat Cat: 2397 . COSPAR: 1966-074B. Apogee: 522 km (324 mi). Perigee: 511 km (317 mi). Inclination: 93.20 deg. Period: 94.90 min. Radar monitoring..

1966 September 16 - . 17:59 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 6874 - . Payload: EHH B5. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1968-05-09 . USAF Sat Cat: 2420 . COSPAR: 1966-083B. Apogee: 501 km (311 mi). Perigee: 461 km (286 mi). Inclination: 94.10 deg. Period: 94.20 min. Radar monitoring..

1966 October 12 - . 19:15 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 5345/Agena D - . Payload: SGLS 1 / OPS 5345. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1966-10-21 . USAF Sat Cat: 2490 . COSPAR: 1966-090B. Apogee: 258 km (160 mi). Perigee: 181 km (112 mi). Inclination: 90.90 deg. Period: 89.00 min. Not identified as a subsatellite ferret by McDowell..

1966 November 2 - . 20:23 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 5424/Agena D - . Payload: Agena Pickaback / OPS 5424. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1966-11-16 . USAF Sat Cat: 2525 . COSPAR: 1966-098B. Apogee: 324 km (201 mi). Perigee: 208 km (129 mi). Inclination: 91.00 deg. Period: 89.90 min. Not identified as a subsatellite ferret by McDowell..

1967 May 9 - . 21:50 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D. FAILURE: Failure of the booster cut-off switch..

SRV 731 - . Payload: SRV 1041-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1993-03-14 . USAF Sat Cat: 2780 . COSPAR: 1967-043xx. Apogee: 145 km (90 mi). Perigee: 131 km (81 mi). Inclination: 84.90 deg. Period: 87.20 min.

1967 May 22 - . 18:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Atlas. Launch Vehicle: Atlas SLV-3 Agena D.

OPS 5557/Agena D - . Payload: LOGACS / OPS 5557. Mass: 700 kg (1,540 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1967-05-27 . USAF Sat Cat: 2816 . COSPAR: 1967-050B. Apogee: 240 km (140 mi). Perigee: 148 km (91 mi). Inclination: 91.50 deg. Period: 88.40 min. Not identified as a subsatellite ferret by McDowell..

1967 June 16 - . 21:35 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 725 - . Payload: SRV 1042-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1968-10-22 . USAF Sat Cat: 2851 . COSPAR: 1967-062xx. Apogee: 197 km (122 mi). Perigee: 182 km (113 mi). Inclination: 80.20 deg. Period: 88.30 min.

1967 November 2 - . 21:31 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 733 - . Payload: SRV 1044-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1969-03-28 . USAF Sat Cat: 3025 . COSPAR: 1967-109xx. Apogee: 208 km (129 mi). Perigee: 179 km (111 mi). Inclination: 81.60 deg. Period: 88.40 min.

1968 January 24 - . 22:26 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 741 - . Payload: SRV 1045-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1970-03-04 . USAF Sat Cat: 3114 . COSPAR: 1968-008xx. Apogee: 186 km (115 mi). Perigee: 185 km (114 mi). Inclination: 81.60 deg. Period: 88.20 min.

1968 March 14 - . 22:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 747 - . Payload: SRV 1046-1 / OPS 7076. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1970-01-03 . USAF Sat Cat: 3153 . COSPAR: 1968-020xx. Apogee: 189 km (117 mi). Perigee: 189 km (117 mi). Inclination: 83.00 deg. Period: 88.30 min.

1968 June 20 - . 21:46 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 745 - . Payload: SRV 1047-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1970-01-11 . USAF Sat Cat: 3297 . COSPAR: 1968-052xx. Apogee: 180 km (110 mi). Perigee: 180 km (110 mi). Inclination: 85.10 deg. Period: 88.10 min.

1968 September 18 - . 21:32 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 749 - . Payload: SRV 1048-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1969-09-28 . USAF Sat Cat: 3409 . COSPAR: 1968-078xx. Apogee: 236 km (146 mi). Perigee: 211 km (131 mi). Inclination: 83.20 deg. Period: 89.00 min.

1968 December 12 - . 22:22 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

OPS 7684 - . Payload: EHH C1 / OPS 7684. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 3605 . COSPAR: 1968-112B. Apogee: 1,466 km (910 mi). Perigee: 1,378 km (856 mi). Inclination: 80.40 deg. Period: 114.30 min. ABM monitoring..

1969 February 5 - . 21:59 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

OPS 2644 - . Payload: EHH C2 / OPS 2644. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 3673 . COSPAR: 1969-010B. Apogee: 1,429 km (887 mi). Perigee: 1,391 km (864 mi). Inclination: 80.40 deg. Period: 114.00 min. ABM monitoring..

1969 March 19 - . 21:38 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 737 - . Payload: SRV 1050-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1971-12-06 . USAF Sat Cat: 3830 . COSPAR: 1969-026xx. Apogee: 168 km (104 mi). Perigee: 168 km (104 mi). Inclination: 83.00 deg. Period: 87.90 min.

1969 May 2 - . 01:46 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 739 - . Payload: SRV 1051-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1970-02-16 . USAF Sat Cat: 3915 . COSPAR: 1969-041xx. Apogee: 193 km (119 mi). Perigee: 177 km (109 mi). Inclination: 65.70 deg. Period: 88.20 min.

1969 September 22 - . 21:11 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

SRV 743R - . Payload: SRV 1052-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1971-05-16 . USAF Sat Cat: 4103 . COSPAR: 1969-079xx. Apogee: 211 km (131 mi). Perigee: 211 km (131 mi). Inclination: 85.10 deg. Period: 88.70 min.

1969 September 30 - . 13:40 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Thor. Launch Vehicle: Thorad SLV-2G Agena D.

OPS 1807 - . Payload: EHH B17. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1970-10-30 . USAF Sat Cat: 4111 . COSPAR: 1969-082A. Apogee: 484 km (300 mi). Perigee: 446 km (277 mi). Inclination: 69.60 deg. Period: 93.90 min.

1970 March 4 - . 22:15 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2H Agena D.

SRV 819 - . Payload: SRV 1109-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1971-11-10 . USAF Sat Cat: 4343 . COSPAR: 1970-016xx. Apogee: 164 km (101 mi). Perigee: 164 km (101 mi). Inclination: 88.10 deg. Period: 87.80 min.

1970 May 20 - . 21:35 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2H Agena D.

OPS 8520 - . Payload: EHH B19. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1974-03-08 . USAF Sat Cat: 4406 . COSPAR: 1970-040B. Apogee: 499 km (310 mi). Perigee: 490 km (300 mi). Inclination: 83.10 deg. Period: 94.50 min. Radar monitoring; may or may not have existed!!!..

1970 November 18 - . 21:29 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2H Agena D.

SRV 827 - . Payload: SRV 1112-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1977-09-14 . USAF Sat Cat: 4722 . COSPAR: 1970-098xx. Apogee: 206 km (128 mi). Perigee: 195 km (121 mi). Inclination: 83.20 deg. Period: 88.50 min.

1971 September 10 - . 21:33 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Thor. Launch Vehicle: Thorad SLV-2H Agena D.

SRV 831 - . Payload: SRV 1115-1. Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1976-02-03 . USAF Sat Cat: 5469 . COSPAR: 1971-076xx. Apogee: 197 km (122 mi). Perigee: 187 km (116 mi). Inclination: 75.00 deg. Period: 88.30 min.

1972 January 20 - . 18:36 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 7719 - . Payload: SSF-B No. 22. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1979-04-17 . USAF Sat Cat: 5772 . COSPAR: 1972-002D. Apogee: 545 km (338 mi). Perigee: 474 km (294 mi). Inclination: 96.00 deg. Period: 94.80 min. Radar monitoring..

1972 July 7 - . 17:46 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 7803 - . Payload: SSF-B No. 23. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1978-05-06 . USAF Sat Cat: 6096 . COSPAR: 1972-052C. Apogee: 504 km (313 mi). Perigee: 498 km (309 mi). Inclination: 96.20 deg. Period: 94.70 min. Radar monitoring..

1972 October 10 - . 18:03 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 8314/2 - . Payload: SSF-C No. 3 / OPS 8314. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 6822 . COSPAR: 1972-079C. Apogee: 1,464 km (909 mi). Perigee: 1,420 km (880 mi). Inclination: 95.60 deg. Period: 114.70 min. ABM monitoring..

1973 November 10 - . 20:09 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 7705 - . Payload: SSF-B No. 24. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1978-12-26 . USAF Sat Cat: 6931 . COSPAR: 1973-088B. Apogee: 505 km (313 mi). Perigee: 488 km (303 mi). Inclination: 96.30 deg. Period: 94.50 min. Radar monitoring..

OPS 6630 P/L 2 - . Payload: SSF-C No. 4 / OPS 6630. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 6938 . COSPAR: 1973-088D. Apogee: 1,457 km (905 mi). Perigee: 1,414 km (878 mi). Inclination: 97.00 deg. Period: 114.60 min.

1974 April 10 - . 20:20 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 4547 - . Payload: OPS 4547 / SSF-B No. 25. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1980-02-22 . USAF Sat Cat: 7247 . COSPAR: 1974-020C. Apogee: 531 km (329 mi). Perigee: 503 km (312 mi). Inclination: 94.00 deg. Period: 95.00 min. Radar monitoring..

1974 October 29 - . 19:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 6239 - . Payload: SSF-B No. 26. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1980-01-23 . USAF Sat Cat: 7498 . COSPAR: 1974-085B. Apogee: 531 km (329 mi). Perigee: 521 km (323 mi). Inclination: 96.00 deg. Period: 95.10 min. Radar monitoring; may or may not have existed!!!..

1975 December 4 - . 20:38 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

KH 9-11 Subsatellite - . Payload: SSF 9 / OPS 5547. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1978-05-01 . USAF Sat Cat: 8468 . COSPAR: 1975-114B. Apogee: 1,558 km (968 mi). Perigee: 236 km (146 mi). Inclination: 96.30 deg. Period: 103.00 min. Not identified as a subsatellite ferret by McDowell..

1976 July 8 - . 18:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 5366 - . Payload: SSF-D No. 1. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 9008 . COSPAR: 1976-065C. Apogee: 632 km (392 mi). Perigee: 628 km (390 mi). Inclination: 96.40 deg. Period: 97.30 min. Radar monitoring..

1978 March 16 - . 18:43 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 7858 - . Payload: SSF-D No. 2. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 10734 . COSPAR: 1978-029B. Apogee: 645 km (400 mi). Perigee: 639 km (397 mi). Inclination: 95.80 deg. Period: 97.60 min. Radar monitoring..

1979 March 16 - . 18:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 6675 - . Payload: SSF-D No. 3. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 11306 . COSPAR: 1979-025B. Apogee: 628 km (390 mi). Perigee: 621 km (385 mi). Inclination: 95.80 deg. Period: 97.20 min.

1980 June 18 - . 18:29 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 1292 - . Payload: SSF-C No. 6. Mass: 60 kg (132 lb). Nation: USA. Agency: CIA, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 11852 . COSPAR: 1980-052C. Apogee: 1,333 km (828 mi). Perigee: 1,331 km (827 mi). Inclination: 96.60 deg. Period: 112.30 min. ABM monitoring; may or may not have existed!!!..

1982 May 11 - . 18:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan IIID.

OPS 6553 - . Payload: SSF-D No. 4. Mass: 60 kg (132 lb). Nation: USA. Agency: CIA, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 13172 . COSPAR: 1982-041C. Apogee: 707 km (439 mi). Perigee: 701 km (435 mi). Inclination: 96.00 deg. Period: 98.90 min. Radar monitoring; may or may not have existed!!!..

1983 June 20 - . 18:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan 34D.

OPS 3899 - . Payload: SSF-C No. 7. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 14139 . COSPAR: 1983-060C. Apogee: 1,296 km (805 mi). Perigee: 1,278 km (794 mi). Inclination: 96.60 deg. Period: 111.31 min. ABM monitoring; may or may not have existed!!!. .

1984 June 25 - . 18:43 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan 34D.

USA 3 - . Payload: SSF-D No. 5. Mass: 60 kg (132 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. USAF Sat Cat: 15071 . COSPAR: 1984-065C. Apogee: 710 km (440 mi). Perigee: 690 km (420 mi). Inclination: 96.10 deg. Period: 98.80 min. Radar monitoring..

1986 April 18 - . 17:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC4E. LV Family: Titan. Launch Vehicle: Titan 34D. FAILURE: Failure.

SSF-D No. 6 - . Payload: SSF-D No. 6. Mass: 60 kg (132 lb). Nation: USA. Agency: USAF. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1986-04-18 .

1989 August 8 - . 12:37 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39B. Launch Platform: MLP2. LV Family: Shuttle. Launch Vehicle: Space Shuttle.

USA 41 - . Nation: USA. Agency: DARPA. Class: Surveillance. Type: SIGINT. Spacecraft Bus: P 11. Spacecraft: SSF. Decay Date: 1989-12-31 . USAF Sat Cat: 20172 . COSPAR: 1989-061C. Apogee: 307 km (190 mi). Perigee: 296 km (183 mi). Inclination: 57.00 deg. Period: 90.50 min. Deployed from STS-28 8/8/89. Believed to be one-off ferret satellite under COBRA BRASS measurement and signature intelligence experiment..

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