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NOSS-Subsat
Part of NOSS Family
USA 22
USA 22
Credit: Manufacturer Image
American military naval signals reconnaissance satellite. Detected the location of naval vessels using radio interferometry. Ocean Surveillance Launch Dispenser satellite built by Naval Research Laboratory (NRL) (#1, 2); (#3 - 9) for, USA. Launched 1976 - 1987.

AKA: EP;GB;JD;Plume shield;SSA;SSD;SSU. Status: Operational 1976. First Launch: 1976-04-30. Last Launch: 1987-05-15. Number: 25 .

Deployed from NOSS. NOSS consisted of a main spacecraft and several subsatellites, linked by fine wires, several 100's of meters apart.


More at: NOSS-Subsat.

Family: Medium earth orbit, Military naval signals reconnsat, SIGINT, Surveillance. Country: USA. Engines: Altair 3D. Launch Vehicles: Titan, Atlas, Atlas F, Atlas F/MSD, Atlas H, Titan 4, Titan 403A. Launch Sites: Vandenberg, Vandenberg SLC3W, Vandenberg SLC3E, Vandenberg SLC4E. Agency: USN. Bibliography: 2, 278, 6.
Photo Gallery

SS 1SS 1
Credit: Manufacturer Image



1976 April 30 - . 19:12 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Atlas. Launch Vehicle: Atlas F/MSD.
  • SSU 3 (NOSS 1) - . Payload: NOSS-Subsat 1-3. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 8884 . COSPAR: 1976-038J. Apogee: 1,324 km (822 mi). Perigee: 893 km (554 mi). Inclination: 63.4000 deg. Period: 107.40 min. Deployed from NOSS 1..
  • SSU 2 (NOSS 1) - . Payload: NOSS-Subsat 1-2. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 8836 . COSPAR: 1976-038D. Apogee: 1,286 km (799 mi). Perigee: 931 km (578 mi). Inclination: 63.4000 deg. Period: 107.40 min. Deployed from NOSS 1..
  • SSU 1 (NOSS 1) - . Payload: NOSS-Subsat 1-1. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 8835 . COSPAR: 1976-038C. Apogee: 1,284 km (797 mi). Perigee: 932 km (579 mi). Inclination: 63.4000 deg. Period: 107.40 min. Deployed from NOSS 1..

1977 December 8 - . 17:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Atlas. Launch Vehicle: Atlas F/MSD.
  • SS 1 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 10529 . COSPAR: 1977-112D. Apogee: 1,169 km (726 mi). Perigee: 1,054 km (654 mi). Inclination: 63.4000 deg. Period: 107.50 min. Deployed from NOSS 2..
  • SS 3 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 10594 . COSPAR: 1977-112F. Apogee: 1,168 km (725 mi). Perigee: 1,055 km (655 mi). Inclination: 63.4000 deg. Period: 107.50 min. Deployed from NOSS 2..
  • SS 2 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 10544 . COSPAR: 1977-112E. Apogee: 1,168 km (725 mi). Perigee: 1,055 km (655 mi). Inclination: 63.4000 deg. Period: 107.50 min. Deployed from NOSS 2..

1980 March 3 - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Atlas. Launch Vehicle: Atlas F/MSD.
  • EP-2 (NOSS 3) - . Payload: Plume shield / OPS 7245 DEB. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 11733 . COSPAR: 1980-019E. Apogee: 1,166 km (724 mi). Perigee: 1,048 km (651 mi). Inclination: 63.5000 deg. Period: 107.40 min.
  • EP 3 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 11745 . COSPAR: 1980-019G. Apogee: 1,166 km (724 mi). Perigee: 1,048 km (651 mi). Inclination: 63.5000 deg. Period: 107.40 min. Deployed from NOSS 3. .
  • EP 1 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 11731 . COSPAR: 1980-019C. Apogee: 1,166 km (724 mi). Perigee: 1,048 km (651 mi). Inclination: 63.5000 deg. Period: 107.40 min. Deployed from NOSS 3..

1983 February 9 - . 13:47 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3E. LV Family: Atlas. Launch Vehicle: Atlas H.
  • SSC - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 13874 . COSPAR: 1983-008H. Apogee: 1,173 km (728 mi). Perigee: 1,043 km (648 mi). Inclination: 63.5000 deg. Period: 107.40 min. Released from NOSS 4..
  • SSD (NOSS 4) - . Payload: NOSS-Subsat 4-4. Nation: USA. Agency: USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 13834 . COSPAR: 1983-008C. Apogee: 1,419 km (881 mi). Perigee: 796 km (494 mi). Inclination: 63.4000 deg. Period: 107.42 min. Released from NOSS 4. .
  • SSA (NOSS 4) - . Payload: NOSS-Subsat 4-1 / OPS 0252 DEB. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 13835 . COSPAR: 1983-008D. Apogee: 1,164 km (723 mi). Perigee: 1,051 km (653 mi). Inclination: 63.5000 deg. Period: 107.40 min. Released from NOSS 4..
  • SSA - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 13844 . COSPAR: 1983-008E. Apogee: 1,166 km (724 mi). Perigee: 1,051 km (653 mi). Inclination: 63.4000 deg. Period: 107.40 min. Released from NOSS 4..

1983 June 9 - . 23:23 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3E. LV Family: Atlas. Launch Vehicle: Atlas H.
  • GB1 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 14143 . COSPAR: 1983-056C. Apogee: 1,167 km (725 mi). Perigee: 1,049 km (651 mi). Inclination: 63.4000 deg. Period: 107.40 min. Deployed from NOSS 5..
  • GB3 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 14180 . COSPAR: 1983-056G. Apogee: 1,166 km (724 mi). Perigee: 1,049 km (651 mi). Inclination: 63.4000 deg. Period: 107.40 min.
  • GB2 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 14144 . COSPAR: 1983-056D. Apogee: 1,167 km (725 mi). Perigee: 1,049 km (651 mi). Inclination: 63.4000 deg. Period: 107.40 min. Deployed from NOSS 5..

1984 February 5 - . 18:44 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3E. LV Family: Atlas. Launch Vehicle: Atlas H.
  • JD3 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 14795 . COSPAR: 1984-012F. Apogee: 1,172 km (728 mi). Perigee: 1,052 km (653 mi). Inclination: 63.4000 deg. Period: 107.00 min.
  • JD2 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 14729 . COSPAR: 1984-012D. Apogee: 1,172 km (728 mi). Perigee: 1,052 km (653 mi). Inclination: 63.4000 deg. Period: 107.00 min. Deployed from NOSS 6..
  • JD1 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 14728 . COSPAR: 1984-012C. Apogee: 1,172 km (728 mi). Perigee: 1,052 km (653 mi). Inclination: 63.4000 deg. Period: 107.00 min. Deployed from NOSS 6..

1986 February 9 - . 10:06 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3E. LV Family: Atlas. Launch Vehicle: Atlas H.
  • USA 16 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 16624 . COSPAR: 1986-014E. Apogee: 1,161 km (721 mi). Perigee: 1,055 km (655 mi). Inclination: 63.0000 deg. Period: 107.40 min.
  • USA 18 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 16631 . COSPAR: 1986-014H. Apogee: 1,407 km (874 mi). Perigee: 817 km (508 mi). Inclination: 63.4140 deg. Period: 107.44 min.
  • USA 17 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 16625 . COSPAR: 1986-014F. Apogee: 1,165 km (723 mi). Perigee: 1,055 km (655 mi). Inclination: 63.0000 deg. Period: 107.40 min.

1987 May 15 - . 15:45 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3E. LV Family: Atlas. Launch Vehicle: Atlas H.
  • USA 24 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 18010 . COSPAR: 1987-043F. Apogee: 1,184 km (735 mi). Perigee: 1,046 km (649 mi). Inclination: 63.2000 deg. Period: 107.90 min.
  • USA 23 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 18009 . COSPAR: 1987-043E. Apogee: 1,170 km (720 mi). Perigee: 1,039 km (645 mi). Inclination: 63.4000 deg. Period: 107.30 min.
  • USA 25 - . Payload: SSU. Nation: USA. Agency: USN. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft Bus: NOSS. Spacecraft: NOSS-Subsat. USAF Sat Cat: 18025 . COSPAR: 1987-043H. Apogee: 1,178 km (731 mi). Perigee: 1,035 km (643 mi). Inclination: 62.6000 deg. Period: 107.60 min.


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