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Chalet
American military signals intelligence satellite. Geosynchronous orbit signals intelligence satellite series that replaced Canyon. Also called Program 366 and Vortex. ELINT satellite built by E-Systems for NRO, USA. Launched 1978 - 1989.

AKA: Program 366;Vortex. Status: Operational 1978. First Launch: 1978-06-10. Last Launch: 1989-05-10. Number: 6 . Gross mass: 932 kg (2,054 lb).


More at: Chalet.

Family: Geosynchronous orbit, Military naval signals reconnsat, SIGINT, Surveillance. Country: USA. Launch Vehicles: Titan, Titan IIIC, Titan 34D, Titan 34D/Transtage. Launch Sites: Cape Canaveral, Cape Canaveral LC40. Agency: USAF. Bibliography: 2, 279, 6, 12176.

1978 June 10 - . 19:12 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan IIIC.
  • Chalet 1 - . Payload: Chalet 1 (Vortex 1) / OPS 9454. Mass: 820 kg (1,800 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft: Chalet. USAF Sat Cat: 10941 . COSPAR: 1978-058A. Apogee: 42,039 km (26,121 mi). Perigee: 29,929 km (18,596 mi). Inclination: 12.0000 deg. Period: 1,446.30 min. First launch of the heavier, mored advanced CHALET ELINT satellites. (the project was renamed VORTEX when the code name CHALET appeared in the New York Times)..

1979 October 1 - . 11:22 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan IIIC.
  • Chalet 2 - . Payload: Chalet 2 (Vortex 2) / OPS 1948. Mass: 820 kg (1,800 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft: Chalet. USAF Sat Cat: 11558 . COSPAR: 1979-086A. Apogee: 41,497 km (25,784 mi). Perigee: 30,443 km (18,916 mi). Inclination: 7.5000 deg. Period: 1,445.50 min. Chalet ELINT satellite..

1981 October 31 - . 09:22 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan IIIC.
  • Chalet 3 - . Payload: Chalet 3 (Vortex 3) / OPS 4029. Mass: 820 kg (1,800 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft: Chalet. USAF Sat Cat: 12930 . COSPAR: 1981-107A. Apogee: 382 km (237 mi). Perigee: 134 km (83 mi). Inclination: 29.3000 deg. Period: 90.40 min. Chalet ELINT satellite..

1984 January 31 - . 03:08 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan 34D/Transtage.
  • Chalet 4 - . Payload: OPS 0441. Mass: 1,043 kg (2,299 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft: Chalet. USAF Sat Cat: 14675 . COSPAR: 1984-009A. Apogee: 1,023 km (635 mi). Perigee: 146 km (90 mi). Inclination: 29.4000 deg. Period: 96.40 min. Chalet ELINT satellite..

1988 September 2 - . 12:05 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan 34D/Transtage. FAILURE: Broken Transtage pressurization feed lines prevented the geosynchronous orbit apogee burn from taking place.. Failed Stage: U.
  • USA 31 - . Payload: Chalet 5. Mass: 1,045 kg (2,303 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft: Chalet. USAF Sat Cat: 19458 . COSPAR: 1988-077A. Apogee: 14,103 km (8,763 mi). Perigee: 151 km (93 mi). Inclination: 29.3000 deg. Period: 99.80 min. Chalet ELINT satellite; upper stage failure left in lower than planned orbit..

1989 May 10 - . 19:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan 34D/Transtage.
  • USA 37 - . Payload: Chalet 6. Mass: 1,045 kg (2,303 lb). Nation: USA. Agency: NRO, USAF. Class: Surveillance. Type: Naval signals intelligence satellite. Spacecraft: Chalet. USAF Sat Cat: 19976 . COSPAR: 1989-035A. Apogee: 40,073 km (24,900 mi). Perigee: 455 km (282 mi). Inclination: 27.5000 deg. Period: 720.00 min. Chalet ELINT satellite..


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