 | Yantar multi-return
| Class: Surveillance. Type: Military. Destination: Surveillance Orbit. Nation: Russia. Agency: MO RF. Manufacturer: Kozlov. Orlets-2 was a late-model Soviet photo-reconnaissance satellite, to be launched by the Zenit-2 launch vehicle, equipped with 22 return capsules, and have a 180 day design life. Only one was flown after the breakup of the Soviet Union since the prime contractor was in the Ukraine. Following evaluation of flight trials in April-May 1977 it was concluded that the Yantar-2K was not capable of providing strategic warning of attack. Therefore three additional variants were developed, one of them the wide-spectrum detail and survey satellite Orlets. This featured a panoramic camera and drew on features of an existing draft project designated Yantar-6K. The redesigned spacecraft would be expandable, with Phase 1 (Orlets-1) being launched by the Soyuz-U2 launch vehicle, equipped with 8 film return capsules and having a design life of 60 days. Phase 2 (Orlets-2) would be launched by the much more powerful Zenit launch vehicle, be equipped with 22 return capsules, and had a 180 day design life. The draft project was completed in the late 1980's; Orlets-2 mass mock-ups were used on two Zenit test flights in 1986 and 1987. The manufacturer of the Zenit launch vehicle was in the Ukraine. After the break-up of the Soviet Union this was clearly an undesirable source for launch vehicles for strategically important spacecraft. Furthermore funds dried up. Consequently only a single Orlets-2 flew, as Cosmos 2290 in 1994. Typical orbit: 190 x 328 km, 64.7 deg inclinaton. Mass: 14,000 kg (30,000 lb). Associated Launch Vehicle: Zenit-2. Orlets-2 Chronology - 1977 May 1 - Council of Chief Designers reconsiders Yantar Soviet reconnsat designs -
Flight trials of the Yantar-2K indicated the satellite was not capable of providing strategic warning of attack. The planned Yantar-6K series, in development since 1969, were overweight and behind schedule. A meeting of the Council of Chief Designers at TsSKB reviewed alternative approaches. It was decided that three variants of the Yantar-2K were to be developed, one of them the high resolution Yantar-4K.
Bibliography and Further Reading
- McDowell, Jonathan, Jonathan's Space Home Page, Harvard University, 1997-present. Jonathan McDowell's complete on-line listing of all objects orbited and over 20,000 rocket launches Accessed at: http://www.planet4589.org/jsr.html.
- McDowell, Jonathan, Jonathan's Space Report (Internet Newsletter), Harvard University, Weekly, 1989 to Present. Essential internet newsletter recording worldwide weekly space events. Accessed at: http://www.planet4589.org/jsr.html.
- Sorokin, V, Novosti kosmonavtiki, "Yantarnaya istoriya-2", No. 11, 1999, p. 71..
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