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Tselina-2

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Tselina-2 Credit: Yuzhnoye

AKA: 11F644. Status: Operational 1984. First Launch: 1984-09-28. Last Launch: 2007-06-29. Number: 26 . Gross mass: 6,000 kg (13,200 lb).

Improved model of the Tselina ELINT satellite with increased frequency range and on-board method of determining the position of fixed transmitters.

Based on the first generation Tselina ELINT, TSNII-KS at the beginning of the 1970's developed the specifications for an improved model. The original Tselina-2 design was authorized in March 1973 and handled by prime contractor TsNIRTI Minradioprom (M E Zaslovskiy) for the ELINT equipment and KB Yuzhnoye (KB-3, B S Khimrov) for the spacecraft bus. The launch vehicle was by OKB MEI Minvuza (A F Bogomolov) and the encrypted communications system by 0-TsNII KS MO. The draft project was drawn up in the first quarter of 1974 and the MO approved the TTZ in May 1974. After a long review process the VPK issued the project plan for development of the system in December 1976.

The new TTZ specification called for a satellite with increased mass and lifetime. This would be launched by the Zenit booster and be a universal Army-Navy system, replacing the separate earlier-generation systems. Data received would be transmitted directly to ground stations via geosynchronous communications satellites.

Delays in development of the Zenit launch vehicle resulted in a revised schedule in a VPK decree of 27 April 1979, with trials then to begin in the second quarter of 1981. Finally the Ministry of Defense gave up waiting for the Zenit and a resolution was issued in September 1984 to launch the first two trials flights by Proton booster in 1984 and 1985. Gherman Titov was in charge of the state commission that oversaw Zenit-boosted trials flights. These began in 1985 and the system was finally accepted into service in 1987. On the sixth attempt the satellite was lost in a catastrophic launch disaster.

Tselina-2 had a vertically-stacked configuration and was 3-axis stabilized. The Korvet radio reception system was used.

Photo Gallery

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Tselina-2 Credit: Manufacturer Image

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Cosmos 1697 Credit: Manufacturer Image

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• Tselina-2 ELINT satellite authorised - . Nation: Russia. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2.

  The improved model had an increased frequency range and on-board method of determining the position of fixed transmitters. The Tselina-2 prime contractors were TsNIRTI Minradioprom (M E Zaslovskiy) for the ELINT equipment and KB Yuzhnoye (KB-3, B S Khimrov) for the spacecraft bus. The launch vehicle was by OKB MEI Minvuza (A F Bogomolov) and the encrypted communications system by 0-TsNII KS MO.

• Tselina-2 specifications approved. - . Nation: Russia. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. The draft project was drawn up in the first quarter of 1974 and the MO approved the TTZ in May 1974..

• Military-Industrial Commission approves Tselina-2 development plan. - . Nation: Russia. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. After a long review process the VPK issued the project plan for development of the system in December 1976. It would now use the new Zenit launch vehicle..

• First Tselina-2 spacecraft completed. - . Nation: Russia. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2.

  The first flight trials system was completed in December 1980, but delays in the development of the Zenit launch vehicle meant that the first two trials flights had to be aboard Proton boosters in 1984 and 1985. Zenit-boosted flights began in 1985 and the system was accepted into service in 1987.

• Cosmos 1603 - . Payload: Tselina-2 no. 1. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 15333 . COSPAR: 1984-106A. Apogee: 863 km (536 mi). Perigee: 832 km (516 mi). Inclination: 71.00 deg. Period: 101.90 min. First launch of new Tselina-2 ELINT satellite. .

• Cosmos 1656 - . Payload: Tselina-2 no. 2. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MOM. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 15755 . COSPAR: 1985-042A. Apogee: 852 km (529 mi). Perigee: 802 km (498 mi). Inclination: 71.10 deg. Period: 101.40 min.

• Cosmos 1697 - . Payload: Tselina-2 no. 3 (Mass Model). Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 16181 . COSPAR: 1985-097A. Apogee: 853 km (530 mi). Perigee: 843 km (523 mi). Inclination: 71.00 deg. Period: 101.90 min. First launch of new Tselina-2 ELINT satellite on Zenit-2 launch vehicle..

• Cosmos 1714 - . Payload: Tselina-2 no. 4. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. Decay Date: 1986-02-27 . USAF Sat Cat: 16434 . COSPAR: 1985-121A. Apogee: 850 km (520 mi). Perigee: 160 km (90 mi). Inclination: 71.00 deg. Period: 94.70 min. Tselina-2 ELINT satellite placed in unusable orbit due to second stage failure..

• Cosmos 1767 - . Payload: Mass Model. Mass: 15,000 kg (33,000 lb). Nation: Russia. Agency: MO. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. Decay Date: 1986-08-16 . USAF Sat Cat: 16883 . COSPAR: 1986-056A. Apogee: 205 km (127 mi). Perigee: 194 km (120 mi). Inclination: 64.90 deg. Period: 88.50 min. Instrumented Tselina-2 mock-up, with mass to test maximum payload capacity of Zenit launch vehicle. Officially: Investigation of the upper atmosphere and outer space..

• Cosmos 1833 - . Payload: Tselina-2 no. 5 (Mass Model). Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 17589 . COSPAR: 1987-027A. Apogee: 855 km (531 mi). Perigee: 845 km (525 mi). Inclination: 70.90 deg. Period: 101.90 min.

• Cosmos 1844 - . Payload: Tselina-2 no. 6. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 17973 . COSPAR: 1987-041A. Apogee: 851 km (528 mi). Perigee: 844 km (524 mi). Inclination: 70.90 deg. Period: 101.90 min.

• Cosmos 1943 - . Payload: Tselina-2 no. 7. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 19119 . COSPAR: 1988-039A. Apogee: 851 km (528 mi). Perigee: 837 km (520 mi). Inclination: 71.00 deg. Period: 101.80 min.

• Cosmos 1980 - . Payload: Tselina-2 no. 8. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 19649 . COSPAR: 1988-102A. Apogee: 849 km (527 mi). Perigee: 841 km (522 mi). Inclination: 71.00 deg. Period: 101.80 min.

• Cosmos 2082 - . Payload: Tselina-2 no. 9. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 20624 . COSPAR: 1990-046A. Apogee: 857 km (532 mi). Perigee: 838 km (520 mi). Inclination: 71.00 deg. Period: 101.90 min.

• Tselina-2 - . Payload: Tselina-2 no. 10. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: UNKS. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2.

• Tselina-2 - . Payload: Tselina-2 no. 11. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: UNKS. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2.

• Tselina-2 - . Payload: Tselina-2 no. 12. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: UNKS. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2.

• Cosmos 2219 - . Payload: Tselina-2 no. 13. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 22219 . COSPAR: 1992-076A. Apogee: 854 km (530 mi). Perigee: 845 km (525 mi). Inclination: 71.00 deg. Period: 101.90 min.

• Cosmos 2227 - . Payload: Tselina-2 no. 14. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 22284 . COSPAR: 1992-093A. Apogee: 855 km (531 mi). Perigee: 845 km (525 mi). Inclination: 71.00 deg. Period: 101.90 min.

• Cosmos 2237 - . Payload: Tselina-2 no. 15. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 22565 . COSPAR: 1993-016A. Apogee: 855 km (531 mi). Perigee: 847 km (526 mi). Inclination: 70.90 deg. Period: 102.00 min.

• Cosmos 2263 - . Payload: Tselina-2 no. 16. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 22802 . COSPAR: 1993-059A. Apogee: 857 km (532 mi). Perigee: 845 km (525 mi). Inclination: 70.90 deg. Period: 102.00 min.

• Cosmos 2278 - . Payload: Tselina-2 no. 17. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 23087 . COSPAR: 1994-023A. Apogee: 857 km (532 mi). Perigee: 846 km (525 mi). Inclination: 71.00 deg. Period: 102.00 min.

• Cosmos 2297 - . Payload: Tselina-2 no. 18. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 23404 . COSPAR: 1994-077A. Apogee: 857 km (532 mi). Perigee: 845 km (525 mi). Inclination: 71.01 deg. Period: 101.96 min.

• Cosmos 2322 - . Payload: Tselina-2 no. 19. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 23704 . COSPAR: 1995-058A. Apogee: 854 km (530 mi). Perigee: 847 km (526 mi). Inclination: 71.00 deg. Period: 102.00 min.

• Cosmos 2333 - . Payload: Tselina-2 no. 20. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 24297 . COSPAR: 1996-051A. Apogee: 852 km (529 mi). Perigee: 849 km (527 mi). Inclination: 70.90 deg. Period: 101.90 min. New heavy ELINT class..

• Heavy ELINT - . Payload: Tselina-2 no. 21. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: VKS. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2.

• Cosmos 2360 - . Payload: Tselina-2 no. 22. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Manufacturer: Yuzhnoye. Program: Tselina. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 25406 . COSPAR: 1998-045A. Apogee: 855 km (531 mi). Perigee: 847 km (526 mi). Inclination: 71.00 deg. Period: 102.00 min.

• Cosmos 2369 - . Mass: 3,200 kg (7,000 lb). Nation: Russia. Agency: MO. Manufacturer: Yuzhnoye. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 26069 . COSPAR: 2000-006A. Apogee: 860 km (534 mi). Perigee: 849 km (528 mi). Inclination: 71.00 deg. Period: 101.95 min. ELINT satellite..

• Cosmos 2406 - . Mass: 3,200 kg (7,000 lb). Nation: Russia. Agency: VKA. Manufacturer: Yuzhnoye. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 28352 . COSPAR: 2004-021A. Apogee: 866 km (538 mi). Perigee: 846 km (525 mi). Inclination: 71.00 deg. Period: 102.10 min. Delayed from February 17 and 18; March 17 and 31; April 6, 25 and 26..

• Cosmos 2428 - . Mass: 3,200 kg (7,000 lb). Nation: Russia. Agency: VKS. Manufacturer: Yuzhnoye. Class: Surveillance. Type: SIGINT. Spacecraft: Tselina-2. USAF Sat Cat: 31792 . COSPAR: 2007-029A. Apogee: 857 km (532 mi). Perigee: 846 km (525 mi). Inclination: 71.00 deg. Period: 102.00 min. Signals intelligence satellite. First launch in three years, and first with the improved version of the Zenit-2 launch vehicle using components developed for the Zenit-3SL..