BackForwardInstrument:  IRMSS 

Instrument details
Acronym IRMSS
Full name Infrared Multispectral Scanner
Purpose Land observation for natural disasters monitoring
Short description 4-channnel (one panchromatic, three SWIR/TIR) radiometer [see detailed characteristics below]
Background Consolidated technology
Scanning Technique Pushbroom. Swath 120 km
Resolution IFOV: PAN and SWIR 80 m, TIR 160 m
Coverage / Cycle Global coverage in 26 days
Mass Power Data Rate 6.13 Mbps

 

Providing Agency CAST
Instrument Maturity Flown on operational programme
Utilization Period: 2000 to 2005
Last update: 2017-03-28
Detailed characteristics
Central wavelength Spectral interval SNR or NEΔT @ specified input
N/A (PAN) 0.50 - 1.10 µm …… @ ….. % albedo
1.650 µm 1.55 - 1.75 µm …… @ ….. % albedo
2.215 µm 2.08 - 2.35 µm …… @ ….. % albedo
11.450 µm 10.4 - 12.5 µm ….. K @ …… K
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
Mission objectives
Primary mission objectives
  • Fire fractional cover
Secondary mission objectives
  • Fire radiative power
  • Fire temperature
  • Leaf Area Index (LAI)
  • Sea-ice cover
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Tentative 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
VariableRelevance for measuring this variableOperational limitationsExplanation
Sea surface temperature5 - marginalCloud sensitive.. Infrequent coverage.TIR window channel(s)
Sea-ice cover5 - marginalCloud sensitive.. Daylight only.Panchromatic channel
Leaf Area Index (LAI)5 - marginalCloud sensitive.. Daylight only.. Infrequent coverage.SWIR channel(s)
Cloud cover5 - marginalInfrequent coverage.TIR window channel(s) around 11 micrometers
Cloud top temperature5 - marginalInfrequent coverage.TIR window channel(s) around 11 micrometers
Fire fractional cover2 - very highCloud sensitive.. Infrequent coverage.TIR window channel(s) around 11 micrometers
Fire temperature5 - marginalCloud sensitive.. Infrequent coverage.TIR window channel(s) around 11 micrometers
Fire radiative power5 - marginalCloud sensitive.. Infrequent coverage.TIR window channel(s) around 11 micrometers
Snow cover2 - very highCloud sensitive.. Infrequent coverage.. Daylight only.SWIR (snow/cloud discrimination) and panchromatic (higher resolution) channels
Glacier cover4 - fairCloud sensitive.. Long time for mapping.. Daylight only.Panchromatic channel for glacier boundary detection, and SWIR channel(s) to screen ice from cloud