BackForwardInstrument:  MWR (SAC-D) 

Instrument details
Acronym MWR (SAC-D)
Full name Micro-Wave Radiometer
Purpose Precipitable water and precipitation rate over the ocean, wind speed, ice observation
Short description 2 frequencies, 3-channels: 23.8 GHz (500 MHz bandwidth, V polarisation) and 36.5 GHz (1 GHz bandwidth, V and H polarisations)
Background New development
Scanning Technique Nadir-pointing, 8 parallel beams for a total swath of 380 km
Resolution 50 km
Coverage / Cycle Global coverage in 1 week
Mass 90 kg Power 97 W Data Rate 19.2 kbps


Providing Agency CONAE
Instrument Maturity Backed by strong heritage
Utilization Period: 2011 to 2015
Last update: 2016-11-01
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Earth observation instrument
  • Passive microwave radiometer
  • Cross-track, special or non-scanning microwave radiometer
WIGOS Subcomponents No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Integrated Water Vapour (IWV)
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
Integrated Water Vapour (IWV)*4 - fairOver sea only.. Along-track only.MW channel(s) in the water vapour band around 23 GHz