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astronautix.com Tselina-2


Article Number: 11F644. Class: ELINT. Nation: USSR. Manufacturer: KBYu.

Based on the first generation Tselina ELINT, TSNII-KS at the beginning of the 1970's developed the specifications for an improved model with increased frequency range and on-board method of determining the position of fixed transmitters. The Tselina-2 was authorised 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. It would now use the new Zenit launch vehicle. 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.


Specification

Total Mass: 6,000 kg.


Tselina-2 Chronology


01 March 1973 Tselina-2 ELINT satellite authorised

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.


01 May 1974 Tselina-2 specifications approved.

The draft project was drawn up in the first quarter of 1974 and the MO approved the TTZ in May 1974.


01 December 1976 Military-Industrial Commission approves Tselina-2 development plan.

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.


01 December 1980 First Tselina-2 spacecraft completed.

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.


28 September 1984 Cosmos 1603 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 6,000 kg. Perigee: 828 km. Apogee: 865 km. Inclination: 71.0 deg.

First launch of new Tselina-2 ELINT satellite.


30 May 1985 Cosmos 1656 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Proton 8K82K / 11S861. Mass: 6,000 kg. Perigee: 802 km. Apogee: 852 km. Inclination: 71.1 deg.
22 October 1985 Cosmos 1697 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 843 km. Apogee: 853 km. Inclination: 71.0 deg.

First launch of new Tselina-2 ELINT satellite on Zenit-2 launch vehicle.


28 December 1985 Cosmos 1714 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. FAILURE: Second stage failed to ignite. Partial Failure. Mass: 6,000 kg. Perigee: 160 km. Apogee: 850 km. Inclination: 71.0 deg.

Tselina-2 ELINT satellite placed in unusable orbit due to second stage failure.


18 March 1987 Cosmos 1833 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 844 km. Apogee: 854 km. Inclination: 70.9 deg.
13 May 1987 Cosmos 1844 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 844 km. Apogee: 851 km. Inclination: 70.9 deg.
15 May 1988 Cosmos 1943 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 836 km. Apogee: 853 km. Inclination: 71.0 deg.
23 November 1988 Cosmos 1980 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 841 km. Apogee: 849 km. Inclination: 71.0 deg.
22 May 1990 Cosmos 2082 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 837 km. Apogee: 857 km. Inclination: 71.0 deg.
04 October 1990 Tselina-2 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. FAILURE: First stage engine exploded after 3 seconds. Mass: 6,000 kg.
30 August 1991 Tselina-2 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. FAILURE: Second stage exploded due to heating problems in main engine. Mass: 6,000 kg.
05 February 1992 Tselina-2 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. FAILURE: Second stage malfunction due to heating problems in main engine. Mass: 6,000 kg.
17 November 1992 Cosmos 2219 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 845 km. Apogee: 854 km. Inclination: 71.0 deg.
25 December 1992 Cosmos 2227 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 841 km. Apogee: 855 km. Inclination: 71.0 deg.
26 March 1993 Cosmos 2237 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 844 km. Apogee: 853 km. Inclination: 71.0 deg.
16 September 1993 Cosmos 2263 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 842 km. Apogee: 856 km. Inclination: 71.0 deg.
23 April 1994 Cosmos 2278 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 846 km. Apogee: 857 km. Inclination: 71.0 deg.
24 November 1994 Cosmos 2297 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 845 km. Apogee: 857 km. Inclination: 71.0 deg.
31 October 1995 Cosmos 2322 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Mass: 6,000 kg. Perigee: 847 km. Apogee: 854 km. Inclination: 71.0 deg.
04 September 1996 Cosmos 2333 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Perigee: 845 km. Apogee: 855 km. Inclination: 71.0 deg.

New heavy ELINT class.


20 May 1997 Heavy ELINT Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. FAILURE: Launch failure.
28 July 1998 Cosmos 2360 Program: Tselina. Launch Site: Baikonur . Launch Vehicle: Zenit-2. Perigee: 847 km. Apogee: 855 km. Inclination: 71.0 deg.
03 February 2000 Cosmos 2369 Launch Site: Baikonur . Launch Vehicle: Zenit-2. Perigee: 849 km. Apogee: 860 km. Inclination: 71.0 deg.

ELINT satellite.



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