Meteor 3 Credit - © Mark Wade

First prototype of Okean series. Development of methods for obtaining operational information on the Pacific Ocean. The Okean's instruments were evidently mounted on a Meteor 3 bus. Instruments did not include the RLSBO side-looking radar. Therefore it would have been equipped with:

SM-5 magnetometer

RM-0.8 scanning radiometer with a swath width of 550 km and a resolution of 25 km

MSU-M 4-band multispectral scanner with a swath width of 1900 km and a resolution of 1.8 km

MSU-S 2-band multispectral scanner with a swath width of 1100 km and a resolution of 410 m

Typical orbit: 540 km x 560 km at 83 degrees inclination. Mass: 1,950 kg (4,290 lb). Associated Launch Vehicle: Tsyklon 3.

• 1979 February 12 - Cosmos 1076 - Program: Okean. Launch Site: Plesetsk. Launch Vehicle: Tsyklon 3. Mass: 1,950 kg (4,290 lb). Perigee: 514 km (319 mi). Apogee: 530 km (320 mi). Inclination: 82.50 deg. Period: 95.10 min.

  Test mission of Okean satellite without the radar. Development of methods for obtaining operational information on the Pacific Ocean.

• 1980 January 23 - Cosmos 1151 - Program: Okean. Launch Site: Plesetsk. Launch Vehicle: Tsyklon 3. Mass: 1,950 kg (4,290 lb). Perigee: 566 km (351 mi). Apogee: 589 km (365 mi). Inclination: 82.50 deg. Period: 96.20 min.

  Test mission of Okean satellite without the radar. Testing of methods for obtaining operational information on the oceans.

• 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.

• Krebs, Gunter, Gunter's Space Page, University of Frankfurt, 1996. Accessed at: http://www.skyrocket.de/space.

• JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Accessed at: http://msl.jpl.nasa.gov/home.html.

• McDowell, Jonathan, Launch Log, October 1998. Jonathan McDowell's complete on-line listing of all objects orbited since Sputnik. Accessed at: http://hea-www.harvard.edu/~jcm/space/log/launch.html.

• USAF Satellite Database, USAF Institute of Technology, 1995. Accessed at: ftp://archive.afit.af.mil/pub/space/.