BackForwardInstrument:  IREI 

Instrument details
Acronym IREI
Full name Infra-Red Earth Imager
Purpose High-resolution land observation
Short description 1 SWIR channel (1550-1700 nm) - Supportive of MBEI
Background Consolidated technology
Scanning Technique Pushbroom. Swath 55 km. Pointable up to ± 35° from nadir
Resolution 46 m
Coverage / Cycle By strategic pointing, any area can be revisited within 5 days (orbital repeat cycle)
Mass 14 kg Power 18 W Data Rate 1.92 Mbps


Providing Agency NSAU
Instrument Maturity Backed by strong heritage
Utilization Period: 2007 to 2027
Last update: 2022-08-01
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 optical radiometer or spectrometer
  • High resolution optical imager
WIGOS Subcomponents No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Leaf Area Index (LAI)
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
Leaf Area Index (LAI)*5 - marginalCloud sensitive.. Daylight only.. Infrequent coverage.SWIR channel(s)