Encyclopedia Astronautica
ELINT


Various US electronic intelligence satellites, most of them from the Naval Research Laboratory, were orbited in the 1960's and still remain classified.

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Ferret American military naval signals reconnaisance satellite. 19 launches, 1962.02.21 (Ferret 1) to 1971.07.16 (OPS 8373). More...
  • NRL ELINT American military naval signals reconnaisance satellite. 6 launches, 1962.12.13 (Black Sphere) to 1969.09.30 (Surcal). NRL ELINT satellite. More...

Associated Launch Vehicles
  • Thor Agena B American orbital launch vehicle. Two stage vehicle consisting of 1 x Thor DM-21 + 1 x Agena B More...
  • Thor Agena D American orbital launch vehicle. Two stage vehicle consisting of 1 x Thor DM-21 + 1 x Agena D More...

Associated Manufacturers and Agencies
  • NRL American manufacturer of rockets and spacecraft. Naval Research Laboratory, Washington, DC, USA. More...
  • USN American agency overseeing development of rockets, spacecraft, and rocket engines. USN Joint Task Force 7, USA. More...
  • USAF American agency overseeing development of rockets and spacecraft. United States Air Force, USA. More...
  • NRO American agency overseeing development of spacecraft. National Reconnaissance Office, USA. More...

Associated Launch Sites
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...

ELINT Chronology


1962 June 18 - . 20:20 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena B. LV Configuration: Thor Agena B 343 / Agena B 2312.
  • FTV 2312 - . Payload: Ferret 2. Nation: USA. Agency: USAF. Program: ELINT. Spacecraft: Ferret. Decay Date: 1963-10-30 . USAF Sat Cat: 308 . COSPAR: 1962-Omega-1. Apogee: 170 km (100 mi). Perigee: 161 km (100 mi). Inclination: 82.2000 deg. Period: 87.80 min.

1962 December 13 - . 04:07 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D. LV Configuration: Thor Agena D 365 / Agena D 2351.
  • Black Sphere - . Payload: NRL PL120. Mass: 23 kg (50 lb). Nation: USA. Agency: USAF; USN. Program: ELINT. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: NRL ELINT. Decay Date: 1967-02-09 . USAF Sat Cat: 502 . COSPAR: 1962-B-Tau-1. Apogee: 2,385 km (1,481 mi). Perigee: 230 km (140 mi). Inclination: 70.3000 deg. Period: 111.80 min. Summary: Identified by McDowell as probable NRL ELINT satellite..
  • Calsphere 1A - . Payload: NRL ELINT. Mass: 23 kg (50 lb). Nation: USA. Agency: USAF; USN. Program: ELINT. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: NRL ELINT. Decay Date: 1967-02-05 . USAF Sat Cat: 513 . COSPAR: 1962-B-Tau-5. Apogee: 2,069 km (1,285 mi). Perigee: 228 km (141 mi). Inclination: 70.3000 deg. Period: 108.40 min. Summary: Identified by McDowell as probable NRL ELINT satellite..

1963 June 15 - . 14:29 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D. LV Configuration: Thor Agena D 378 / Agena D 2353.
  • USN satellite - . Payload: NRL PL130?. Mass: 35 kg (77 lb). Nation: USA. Agency: USN. Program: ELINT. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: NRL ELINT. Decay Date: 1963-07-27 . USAF Sat Cat: 598 . COSPAR: 1963-021E. Apogee: 859 km (533 mi). Perigee: 170 km (100 mi). Inclination: 69.9000 deg. Period: 94.90 min. Summary: Identified by McDowell as probable NRL ELINT satellite..

1964 January 11 - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2. LV Configuration: Thor SLV-2A Agena D 390 / Agena D 2354.
  • Agena D 2354 - . Mass: 700 kg (1,540 lb). Nation: USA. Agency: USAF. Program: ELINT. Spacecraft: Ferret. USAF Sat Cat: 727 . COSPAR: 1964-001A. Apogee: 937 km (582 mi). Perigee: 906 km (562 mi). Inclination: 69.9000 deg. Period: 103.50 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • Unidentified - . Payload: NRL PL135. Mass: 40 kg (88 lb). Nation: USA. Agency: NRL. Program: ELINT. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: NRL ELINT. USAF Sat Cat: 731 . COSPAR: 1964-001E. Apogee: 919 km (571 mi). Perigee: 902 km (560 mi). Inclination: 69.9000 deg. Period: 103.20 min. Summary: Identified by McDowell as probable NRL ELINT satellite..

1964 December 21 - . 19:08 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2E. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 425 / Agena D SS-01A 2355.
  • OPS 3762/Agena D 2355 - . Nation: USA. Agency: NRO; USAF. Program: ELINT. Spacecraft: Ferret. Decay Date: 1965-01-11 . USAF Sat Cat: 964 . COSPAR: 1964-087A. Apogee: 264 km (164 mi). Perigee: 238 km (147 mi). Inclination: 70.1000 deg. Period: 89.50 min. Summary: Unknown mission. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

1965 March 9 - . 18:29 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2. LV Configuration: Thor SLV-2 Agena D 419 / Agena D SS-01A 2701.
  • Solrad 6B - . Payload: NRL PL 142 / OPS 4988. Mass: 40 kg (88 lb). Nation: USA. Agency: USN. Program: ELINT. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: NRL ELINT. USAF Sat Cat: 1271 . COSPAR: 1965-016A. Apogee: 924 km (574 mi). Perigee: 896 km (556 mi). Inclination: 70.1000 deg. Period: 103.20 min. Summary: Identified by McDowell as probable NRL ELINT satellite..

1969 September 30 - . 13:40 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thorad Agena D SLV-2G. LV Configuration: Thorad SLV-2G Agena D 525 / Agena D.
  • Surcal - . Payload: NRL PL164 / OPS 7613. Mass: 40 kg (88 lb). Nation: USA. Agency: NRL. Program: ELINT. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: NRL ELINT. USAF Sat Cat: 4295 . COSPAR: 1969-082G. Apogee: 926 km (575 mi). Perigee: 899 km (558 mi). Inclination: 70.0000 deg. Period: 103.30 min. Summary: Identified by McDowell as probable NRL ELINT satellite..

Home - Browse - Contact
© / Conditions for Use