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OKEAN-O Spacecraft (removed from service)

Mission Objective
Spacecraft is designed for an operational and all-weather acquisition of data on the World Ocean and land surface conditions.

Tasks to be fulfilled:
Monitoring the Arctic and Antarctic ice conditions: mapping the boundaries of different thick ice floes, detecting large ice leads, areas of higher wind-driven waves resulted from hazardous natural phenomena, an operational detection of fishery promising regions, detecting sea-polluted areas.

Consumers:
Federal and governmental services organizations (Rosgidromet, Minmorflot, and others) and consumers on vessels at sea as well.

Special Features:
Onboard instruments enable comprehensive simultaneous research in visible, infrared, and microwave regions as well as simultaneous observations (space Earth) using the equipment designed for data acquisition from ground stations. Two side-looking radars (RLSBO) with right- and left-side looking provide a full coverage of the Earths surface with radar imagery. With one spacecraft in orbit the entire water surface of the Russian Arctic Zone is imaged for 3-5 days.
Performance Characteristics of Onboard Instruments
InstrumentMSU-SKMSU-MMSU-VDeltaRLSBOR-600R-225TrasserKondor
Resolution160 — 600m2.0km50-275m20-100km2.0km 130*130km130* 130km
Swath width600km1900kv200km800km470km
Spectral range (operating wavelength)0.5 — 11.8m0.5 — 1.1m0.45 — 12.6m0.8 — 4.5cm3.2cm 6cm 2.25cm0.43 — 0.8m1533MHz
Number of channels5484162

RLSBO — Side-looking radar
MSU-SK -Multi-channel scanning device of moderate resolution
MSU-M — Multi-channel scanning device of low resolution
MSU-V — Multi-channel scanning device of high resolution
KONDOR — Equipment for collection and transmission of data from automatic marine and ice stations
Delta — Scanning microwave radiometer
R-600, R-225 — Tracking UHF radiometers
Trasser- Polarizational spectrum radiometer
The data acquired is transmitted to ground via two radio links: at 8.2GHz (microwave region, digital format, data rate up to 64Mbps) and at 137.4MHz (VHF, format ÀÐÒ).

Main Characteristics

Launch date 17.07.1999
Spacecraft mass 6150kg
Payload mass 1520kg
Launcher Zenit
Spaceport Baikonur
Orbital parameters:
— Altitude 670km
— Inclination 98.00deg.
Active life 1 year
Developer NPO Yuzhnoye
The spacecraft has been removed from service because of reaching the end of its service life.


URL : http://www.ntsomz.ru/ks_dzz/satellites/okean_o
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