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Microwave Scanning Radiometer (MSR)

NSSDCA ID: 1990-013A-03

Mission Name: MOS-1B
Principal Investigator:


The Microwave Scanning Radiometer (MSR) was a passive microwave radiometer with two frequency channels designed to provide information on snow cover and sea-ice extent, atmospheric liquid water and water vapor content, ocean wind speed and large-scale sea surface temperature. The instrument is a Dicke-type radiometer using a mechanical conical scan with the offset parabolic reflector rotating at 18 rpm. The instrument used two different integration times for both channels: 10 and 47 microsecond. The two channels were: Channel 1 at 23.8 GHz H polarization with a ground resolution of 32 km with a swath width of 317 km and Channel 2 at 31.4 GHz V polarization with a ground resolution of 23 km and swath width of 317 km. Both channels provided 1.5 degree K radiometric resolution and a dynamic range of 30 - 330 degrees K at a data rate of 2 kbps.

Alternate Names

  • MOS-1B/MSR
  • MSR


  • Earth Science: Physical Oceanography

Additional Information

Questions and comments about this experiment can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Principal InvestigatorNational Space Development Agency of Japan
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