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IS-P
Part of Kosmoplan Family
Istrebitel Sputnik
Istrebitel Sputnik
IS-A Antisatellite satellite. As far as is known, follow-on models and the R-36-launched targets had a similar appearance.
Credit: © Mark Wade
Russian military anti-satellite system target satellite. ASAT Target, launched by R-36. Evidently a derivative of the first IS-A ASAT itself.

AKA: 5V91T; I2M; IS-T; Uran. Status: Operational 1968. First Launch: 1968-04-24. Last Launch: 1970-10-20. Number: 4 . Gross mass: 1,400 kg (3,000 lb).

Replaced by the cheaper, lighter ASAT target designed by Yangel for launch by Kosmos launch vehicles.

Family: anti-satellite target, Medium earth orbit, Military. Country: Russia. Launch Vehicles: Tsiklon, Tsiklon-2, Tsiklon-2A. Launch Sites: Baikonur, Baikonur LC90/19, Baikonur LC90/20. Agency: Chelomei bureau, MO. More at: 12692, 12693. Bibliography: 102, 2, 272, 6.



1968 April 24 - . 16:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC90/20. LV Family: R-36. Launch Vehicle: Tsiklon-2A.
  • Cosmos 217 - . Mass: 1,400 kg (3,000 lb). Nation: Russia. Agency: PKO. Class: Military. Type: Anti-satellite system target. Spacecraft Bus: Kosmoplan. Spacecraft: IS-P. Decay Date: 1968-04-26 . USAF Sat Cat: 3216 . COSPAR: 1968-036A. Apogee: 179 km (111 mi). Perigee: 140 km (80 mi). Inclination: 62.3000 deg. Period: 87.70 min. Unsuccessful launch of ASAT target. Satellite did not separate from last rocket stage. Planned launch of interceptor cancelled..

1968 October 19 - . 04:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC90/19. LV Family: R-36. Launch Vehicle: Tsiklon-2A.
  • Cosmos 248 - . Mass: 1,400 kg (3,000 lb). Nation: Russia. Agency: PKO. Class: Military. Type: Anti-satellite system target. Spacecraft Bus: Kosmoplan. Spacecraft: IS-P. Decay Date: 1980-02-26 . USAF Sat Cat: 3503 . COSPAR: 1968-090A. Apogee: 543 km (337 mi). Perigee: 475 km (295 mi). Inclination: 62.3000 deg. Period: 94.80 min. ASAT target. Intercepted repeatedly by Cosmos 249 on 20 October; destroyed by Cosmos 252 on 1 November..

1969 August 6 - . 05:40 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC90/19. Launch Pad: LC90/pad?. LV Family: R-36. Launch Vehicle: Tsiklon-2.
  • Cosmos 291 - . Payload: IS-P Mass Model. Mass: 1,400 kg (3,000 lb). Nation: Russia. Agency: PKO. Class: Military. Type: Anti-satellite system target. Spacecraft Bus: Kosmoplan. Spacecraft: IS-P. Decay Date: 1969-09-08 . USAF Sat Cat: 4058 . COSPAR: 1969-066A. Apogee: 548 km (340 mi). Perigee: 144 km (89 mi). Inclination: 62.2000 deg. Period: 91.40 min. Test of Tsyklon 2 booster; ASAT target mass model. Did not enter typical target orbit due to lack of on-board engine. Simulated launch of ASAT interceptor planned for the next day was cancelled..

1970 October 20 - . 05:38 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC90/19. Launch Pad: LC90/pad?. LV Family: R-36. Launch Vehicle: Tsiklon-2.
  • Cosmos 373 - . Mass: 650 kg (1,430 lb). Nation: Russia. Agency: PKO. Class: Military. Type: Anti-satellite system target. Spacecraft Bus: Kosmoplan. Spacecraft: IS-P. Decay Date: 1980-03-08 . USAF Sat Cat: 4590 . COSPAR: 1970-087A. Apogee: 1,103 km (685 mi). Perigee: 510 km (310 mi). Inclination: 62.9000 deg. Period: 101.00 min. ASAT target. Maneuvered twice to provide target for Cosmos 374 and 375 interceptors..


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