OKEAN 2

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OKEAN 2 is classified as:

Earth resources

NORAD ID: 20510

Int'l Code: 1990-018A

Perigee: 557.4 km

Apogee: 574.1 km

Inclination: 82.5 °

Period: 95.8 minutes

Semi major axis: 6936 km

RCS: 10.2318 m² (large)

Launch date: February 28, 1990
Source: Commonwealth of Independent States (former USSR) (CIS)
Launch site: PLESETSK MISSILE AND SPACE COMPLEX (PKMTR)

The Okean series of satellites were all-weather radar oceanographic systems primarily designed to monitor sea-ice conditions in the Arctic seas. The payload included a side-looking radar, a scanning microwave radiometer, a nadir-viewing microwave spectrometer, optical scanners and a data collection platform. The spacecraft was a stepped cylindrical pressurized bus 3 m high and 1.4 m diameter. It was 3-axis stabilized (nadir pointing, aided by a gravity gradient boom), had a twin solar array spanning 4.82 m and an 11.8 m radar antenna mounted on the Earth-facing base.

1 20510U 90018A   23154.35037780  .00002902  00000-0  21518-3 0  9997
2 20510  82.5156 238.1477 0012038 171.5911 255.8671 15.02699202786649

Source of the keplerian elements: AFSPC