Encyclopedia Astronautica
Tselina-2



tselina2.jpg
Tselina-2
Credit: Yuzhnoye
Ukrainian military naval signals reconnaisance satellite. 25 launches, 1984.09.28 (Cosmos 1603) to 2007.06.29 (Cosmos 2406).

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.

AKA: 11F644.
Gross mass: 6,000 kg (13,200 lb).
First Launch: 1984.09.28.
Last Launch: 2007.06.29.
Number: 25 .

More... - Chronology...


Associated Countries
See also
  • Proton The Proton launch vehicle has been the medium-lift workhorse of the Soviet and Russian space programs for over forty years. Although constantly criticized within Russia for its use of toxic and ecologically-damaging storable liquid propellants, it has out-lasted all challengers, and no replacement is in sight. More...
  • Zenit Zenit was to be a modular new generation medium Soviet launch vehicle, replacing the various ICBM-derived launch vehicles in use since the 1960's (Tsiklon and Soyuz). A version of the first stage was used as strap-ons for the cancelled Energia heavy booster. But it was built by Yuzhnoye in the Ukraine; when the Soviet Union broke up planned large-scale production for the Soviet military was abandoned (Angara development was begun as an indigenous alternative). Launch pads were completed only at Baikonur; those at Plesetsk were never finished and are planned to be completed as Angara pads. However the vehicle found new life as a commercial launch vehicle, launched from a sea platform by an American/Ukrainian consortium. More...

Associated Launch Vehicles
  • Proton The Proton launch vehicle has been the medium-lift workhorse of the Soviet and Russian space programs for over forty years. Although constantly criticized within Russia for its use of toxic and ecologically-damaging storable liquid propellants, it has out-lasted all challengers, and no replacement is in sight. Development of the Proton began in 1962 as a two-stage vehicle that could be used to launch large military payloads or act as a ballistic missile with a 100 megaton nuclear warhead. The ICBM was cancelled in 1965, but development of a three-stage version for the crash program to send a Soviet man around the moon began in 1964. The hurried development caused severe reliability problems in early production. But these were eventually solved, and from the 1970's the Proton was used to launch all Russian space stations, medium- and geosynchronous orbit satellites, and lunar and planetary probes. More...
  • Proton-K/DM-2 Russian orbital launch vehicle. This improved four stage version uses the Block DM-2 / 11S861 fourth stage, which has its own guidance unit. This reduces payload but does not require the spacecraft's guidance system to provide steering commands to booster. Replaced the original Block DM / 11S86 version from 1982 to 1995. Used for launch of Glonass navigation satellites into medium earth orbit; and launch of Luch, Ekran-M, Potok, Raduga, Gorizont, Raduga-1, Elektro, and Gals communications satellites into geosynchronous orbit. Commercial version with Saab payload adapter-seperation system for Western payloads was dubbed 'Block DM1'. More...
  • Zenit Zenit was to be a modular new generation medium Soviet launch vehicle, replacing the various ICBM-derived launch vehicles in use since the 1960's (Tsiklon and Soyuz). A version of the first stage was used as strap-ons for the cancelled Energia heavy booster. But it was built by Yuzhnoye in the Ukraine; when the Soviet Union broke up planned large-scale production for the Soviet military was abandoned (Angara development was begun as an indigenous alternative). Launch pads were completed only at Baikonur; those at Plesetsk were never finished and are planned to be completed as Angara pads. However the vehicle found new life as a commercial launch vehicle, launched from a sea platform by an American/Ukrainian consortium. More...
  • Zenit-2 Ukrainian orbital launch vehicle. Two-stage version that continued to be used for launch of Russian military satellites tailored to it after the fall of the Soviet Union. More...
  • Zenit-2SLB Ukrainian orbital launch vehicle. Two-stage version of the Zenit-3SL booster developed for the Sea Launch program, modified for launch from ground facilities at Baikonur. Uses the common Zenit-2SB core vehicle with no upper stage. More...

Associated Manufacturers and Agencies
  • Yuzhnoye Ukrainian manufacturer of rockets, spacecraft, and rocket engines. Yangel Design Bureau, Dnepropetrovsk, Ukraine. More...

Associated Programs
Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. Web Address when accessed: here.
  • Krebs, Gunter, Gunter's Space Page, University of Frankfurt, 1996. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.
  • Kaesmann, Ferdinand, et. al., "Proton - Development of A Russian Launch Vehicle", Journal of the British Interplanetary Society, 1998, Volume 51, page 3.
  • Voevodin, Sergey A, "Sergey A. Voevodin's Reports", VSA072 - Space Apparatus, Web Address when accessed: here.
  • Vladimirov, A, "Tablitsa zapuskov RN 'Proton' i 'Proton K'", Novosti kosmonavtiki, 1998, Issue 10, page 25.
  • NASA GSFC Orbital Parameters,
  • McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: here.
  • Melnik, T G, Voenno-Kosmicheskiy Siliy, Nauka, Moscow, 1997..
  • NASA/GSFC Orbital Information Group Website, Web Address when accessed: here.
  • Space-Launcher.com, Orbital Report News Agency. Web Address when accessed: here.

Associated Launch Sites
  • Baikonur Russia's largest cosmodrome, the only one used for manned launches and with facilities for the larger Proton, N1, and Energia launch vehicles. The spaceport ended up on foreign soil after the break-up of Soviet Union. The official designations NIIP-5 and GIK-5 are used in official Soviet histories. It was also universally referred to as Tyuratam by both Soviet military staff and engineers, and the US intelligence agencies. Since the dissolution of the Soviet Union the Russian Federation has insisted on continued use of the old Soviet 'public' name of Baikonur. In its Kazakh (Kazak) version this is rendered Baykonur. More...

Tselina-2 Chronology


1973 March - .
  • Tselina-2 ELINT satellite authorised - . Nation: USSR. 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.

1974 May - .
  • Tselina-2 specifications approved. - . Nation: USSR. Spacecraft: Tselina-2. Summary: The draft project was drawn up in the first quarter of 1974 and the MO approved the TTZ in May 1974..

1976 December - .
  • Military-Industrial Commission approves Tselina-2 development plan. - . Nation: USSR. Spacecraft: Tselina-2. Summary: 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..

1980 December - .
  • First Tselina-2 spacecraft completed. - . Nation: USSR. 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.

1984 September 28 - . 14:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/39. LV Family: Proton. Launch Vehicle: Proton-K/DM-2. LV Configuration: Proton-K/DM-2 327-02.
  • Cosmos 1603 - . Payload: Tselina-2 no. 1. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MOM. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 15333 . COSPAR: 1984-106A. Apogee: 863 km (536 mi). Perigee: 832 km (516 mi). Inclination: 71.0000 deg. Period: 101.90 min. Summary: First launch of new Tselina-2 ELINT satellite. .

1985 May 30 - . 14:59 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/40. LV Family: Proton. Launch Vehicle: Proton-K/DM-2. LV Configuration: Proton-K/DM-2 313-02.
  • Cosmos 1656 - . Payload: Tselina-2 no. 2. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MOM. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 15755 . COSPAR: 1985-042A. Apogee: 852 km (529 mi). Perigee: 802 km (498 mi). Inclination: 71.1000 deg. Period: 101.40 min.

1985 October 22 - . 07:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 1697 - . Payload: Tselina-2 no. 3 (Mass Model). Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 16181 . COSPAR: 1985-097A. Apogee: 853 km (530 mi). Perigee: 843 km (523 mi). Inclination: 71.0000 deg. Period: 101.90 min. Summary: First launch of new Tselina-2 ELINT satellite on Zenit-2 launch vehicle..

1985 December 28 - . 09:16 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. Launch Pad: LC45/pad?. LV Family: Zenit. Launch Vehicle: Zenit-2. FAILURE: Second stage failed to ignite. Partial Failure.. Failed Stage: 2.
  • Cosmos 1714 - . Payload: Tselina-2 no. 4. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. 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: 71.0000 deg. Period: 94.70 min. Summary: Tselina-2 ELINT satellite placed in unusable orbit due to second stage failure..

1987 March 18 - . 08:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 1833 - . Payload: Tselina-2 no. 5 (Mass Model). Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 17589 . COSPAR: 1987-027A. Apogee: 855 km (531 mi). Perigee: 845 km (525 mi). Inclination: 70.9000 deg. Period: 101.90 min.

1987 May 13 - . 05:40 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 1844 - . Payload: Tselina-2 no. 6. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 17973 . COSPAR: 1987-041A. Apogee: 851 km (528 mi). Perigee: 844 km (524 mi). Inclination: 70.9000 deg. Period: 101.90 min.

1988 May 15 - . 09:20 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 1943 - . Payload: Tselina-2 no. 7. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 19119 . COSPAR: 1988-039A. Apogee: 851 km (528 mi). Perigee: 837 km (520 mi). Inclination: 71.0000 deg. Period: 101.80 min.

1988 November 23 - . 14:50 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 1980 - . Payload: Tselina-2 no. 8. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 19649 . COSPAR: 1988-102A. Apogee: 849 km (527 mi). Perigee: 841 km (522 mi). Inclination: 71.0000 deg. Period: 101.80 min.

1990 May 22 - . 05:14 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/2. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2082 - . Payload: Tselina-2 no. 9. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 20624 . COSPAR: 1990-046A. Apogee: 857 km (532 mi). Perigee: 838 km (520 mi). Inclination: 71.0000 deg. Period: 101.90 min.

1990 October 4 - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/2. LV Family: Zenit. Launch Vehicle: Zenit-2. FAILURE: First stage engine exploded after 3 seconds.. Failed Stage: 1.
  • Tselina-2 - . Payload: Tselina-2 no. 10. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: UNKS. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. COSPAR: F901004A.

1991 August 30 - . 08:58 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2. FAILURE: Second stage exploded due to heating problems in main engine.. Failed Stage: 2.
  • Tselina-2 - . Payload: Tselina-2 no. 11. Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: UNKS. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. COSPAR: F910830A.

1992 February 5 - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2. FAILURE: Second stage malfunction due to heating problems in main engine.. Failed Stage: 2.
  • Tselina-2 - . Payload: Tselina-2 no. 12. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: UNKS. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. COSPAR: F920205A.

1992 November 17 - . 07:47 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2219 - . Payload: Tselina-2 no. 13. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 22219 . COSPAR: 1992-076A. Apogee: 854 km (530 mi). Perigee: 845 km (525 mi). Inclination: 71.0000 deg. Period: 101.90 min.

1992 December 25 - . 05:56 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2227 - . Payload: Tselina-2 no. 14. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 22284 . COSPAR: 1992-093A. Apogee: 855 km (531 mi). Perigee: 845 km (525 mi). Inclination: 71.0000 deg. Period: 101.90 min.

1993 March 26 - . 02:21 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2237 - . Payload: Tselina-2 no. 15. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 22565 . COSPAR: 1993-016A. Apogee: 855 km (531 mi). Perigee: 847 km (526 mi). Inclination: 70.9000 deg. Period: 102.00 min.

1993 September 16 - . 07:36 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2263 - . Payload: Tselina-2 no. 16. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 22802 . COSPAR: 1993-059A. Apogee: 857 km (532 mi). Perigee: 845 km (525 mi). Inclination: 70.9000 deg. Period: 102.00 min.

1994 April 23 - . 08:01 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2278 - . Payload: Tselina-2 no. 17. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 23087 . COSPAR: 1994-023A. Apogee: 857 km (532 mi). Perigee: 846 km (525 mi). Inclination: 71.0000 deg. Period: 102.00 min.

1994 November 24 - . 09:15 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2297 - . Payload: Tselina-2 no. 18. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 23404 . COSPAR: 1994-077A. Apogee: 857 km (532 mi). Perigee: 845 km (525 mi). Inclination: 71.0100 deg. Period: 101.96 min.

1995 October 31 - . 20:19 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2322 - . Payload: Tselina-2 no. 19. Mass: 6,000 kg (13,200 lb). Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 23704 . COSPAR: 1995-058A. Apogee: 854 km (530 mi). Perigee: 847 km (526 mi). Inclination: 71.0000 deg. Period: 102.00 min.

1996 September 4 - . 09:01 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2333 - . Payload: Tselina-2 no. 20. Nation: Russia. Agency: MO. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 24297 . COSPAR: 1996-051A. Apogee: 852 km (529 mi). Perigee: 849 km (527 mi). Inclination: 70.9000 deg. Period: 101.90 min. Summary: New heavy ELINT class..

1997 May 20 - . 07:07 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2. FAILURE: Strut in first stage engine failed at T+48 seconds.. Failed Stage: 1.
  • Heavy ELINT - . Payload: Tselina-2 no. 21. Nation: Russia. Agency: VKS. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. COSPAR: F970520A.

1998 July 28 - . 09:15 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2.
  • Cosmos 2360 - . Payload: Tselina-2 no. 22. Nation: Russia. Agency: MO. Manufacturer: Yuzhnoye. Program: Tselina. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 25406 . COSPAR: 1998-045A. Apogee: 855 km (531 mi). Perigee: 847 km (526 mi). Inclination: 71.0000 deg. Period: 102.00 min.

2000 February 3 - . 09:26 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2. LV Configuration: Zenit-2 45025801.
  • Cosmos 2369 - . Mass: 3,200 kg (7,000 lb). Nation: Russia. Agency: MO. Manufacturer: Yuzhnoye. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 26069 . COSPAR: 2000-006A. Apogee: 860 km (534 mi). Perigee: 849 km (528 mi). Inclination: 70.9965 deg. Period: 101.95 min. Summary: ELINT satellite..

2004 June 10 - . 01:28 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2. LV Configuration: Zenit-2 1-95.
  • Cosmos 2406 - . Mass: 3,200 kg (7,000 lb). Nation: Russia. Agency: VKA. Manufacturer: Yuzhnoye. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 28352 . COSPAR: 2004-021A. Apogee: 866 km (538 mi). Perigee: 846 km (525 mi). Inclination: 71.0000 deg. Period: 102.10 min. Summary: Delayed from February 17 and 18; March 17 and 31; April 6, 25 and 26..

2007 June 29 - . 10:00 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2SLB. LV Configuration: Zenit-2M 1-2005.
  • Cosmos 2428 - . Mass: 3,200 kg (7,000 lb). Nation: Russia. Agency: VKS. Manufacturer: Yuzhnoye. Class: Military. Type: Military naval signals reconnaisance satellite. Spacecraft: Tselina-2. USAF Sat Cat: 31792 . COSPAR: 2007-029A. Apogee: 857 km (532 mi). Perigee: 846 km (525 mi). Inclination: 71.0000 deg. Period: 102.00 min. Summary: 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..

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