Encyclopedia Astronautica
Okean-O



okeano2.jpg
Okean-O
Okean-O2 satellite. The Tselina-2 and -3 SIGINT satellites are believed to use the same vertically-stacked satellite bus and to be similar in appearance.
Credit: Dmitry Pieson
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Okean-O
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Okean-O
Credit: Yuzhnoye
Ukrainian earth resources radar satellite. One launch, 1999.07.17.

The Okean-O third-generation heavy oceanographic research satellite used a side scanning radar, radiometer, and multispectral scanners to comprehensively study the surface and subsurface energy of the world ocean.

A decree of 5 May 1977 authorized development of three earth resource satellites. The Ministry of Defense was tasked with developing these systems, even though they did not contribute directly to any military mission. Okean-O, which became Okean-3, was based on the Tselina-D bus. The Sich-2 / Okean-O 17F43 oceanographic research satellite weighed 6360 kg. Launched by the Zenit booster, it represented Phase 2 of the third generation of Soviet space systems. With both the satellite and launch vehicle manufacturer located in the Ukraine, it did not fly until long after the break-up of the Soviet Union. Mission was acquisition of operational oceanographic information in the interests of various branches of the national economy of the USSR and international cooperation; continued trials of new types of informational and measurement apparatus and methods of remote sensing of the earth's surface and atmosphere. Proposed scientific instruments were:

  • RLSBO-D side-looking radar with a swath width of 700 km and a resolution of 1.5 x 2.- km
  • Delta-2 scanning radiometer with a swath width of 900 km and a resolution of 16 x 21 km
  • MSU-M 4-band multispectral scanner with a swath width of 1930 km and a resolution of 1.7 km
  • MSU-SK 5-band multispectral scanner with a swath width of 600 km and a resolution of 175 x 245 m
  • MSU-V 8-band multispectral scanner with a swath width of 180 km and a resolution of 50 m
  • MSU-E 3-band multispectral scanner with a swath width of 45 km and a resolution of 30 m
  • Video optical spectrometer with a swath width of 740 km and a resolution of 1 km

The Okean-O program was designed:

  • to estimate the potential reserves of the energy of tides and the accumulated energy of solar radiation
  • to study the World Ocean as a global damper and regulator of heat and moisture content of the atmosphere
  • to detect zones of upwelling and higher bioproductivity
  • to study subsurface circular eddies and their effect on the formation of destructive cyclones and typhoons
  • to ensure the safety of navigation and control of the ice situation in the Arctic and Antarctic
  • to study the dynamics of sea currents, and the processes of self-purification of sea water and cleansing of river effluents; and
  • to control the intensity of pollution of the oceans with oil and oil product discharged.

Okean spacecraft with their electro-optical and radar sensors were designed and manufactured by the Ukrainian Yuzhnoye Scientific Production Association of Dnepropetrovsk.

AKA: Sich-2; Okean-3; 17F43.
Gross mass: 6,360 kg (14,020 lb).
First Launch: 1999.07.17.
Number: 1 .

More... - Chronology...


Associated Countries
See also
  • 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
  • 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...

Associated Manufacturers and Agencies
  • Yuzhnoye Ukrainian manufacturer of rockets, spacecraft, and rocket engines. Yangel Design Bureau, Dnepropetrovsk, Ukraine. More...
  • RAKA Russian agency overseeing development of spacecraft. Russian Aviation and Space Agency (Rosaviakosmos), Moscow, Russia. More...

Associated Programs
Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • Krebs, Gunter, Gunter's Space Page, University of Frankfurt, 1996. 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...

Okean-O Chronology


1999 July 17 - . 06:38 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC45/1. LV Family: Zenit. Launch Vehicle: Zenit-2. LV Configuration: Zenit-2 17L.
  • Okean-O - . Payload: Okean-O no. 1. Mass: 4,360 kg (9,610 lb). Nation: Russia. Agency: RAKA. Manufacturer: Yuzhnoye. Program: Okean. Class: Earth. Type: Earth resources satellite. Spacecraft: Okean-O. USAF Sat Cat: 25860 . COSPAR: 1999-039A. Apogee: 649 km (403 mi). Perigee: 648 km (402 mi). Inclination: 97.9000 deg. Period: 97.70 min. First of a new generation of larger Okean oceanographic satellites, carried a side-looking radar (RSL-BO), and a set of visible and infrared scanners and radiometers. It is built by the Ukrainian Yuzhnoye company and is a joint project of the Russian Aviation/Space Agency (RAKA) and the Ukrainian National Space Agency (NKAU).

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