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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 2003-10-12
Last update:
2017-03-28
Detailed characteristics
Central wavelength Spectral interval SNR or NE Δ T @ 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
WIGOS Subcomponents
No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
Secondary mission objectives Fire radiative power Fire temperature Leaf Area Index (LAI) Sea-ice cover
Opportunity objectives Cloud cover Cloud top temperature Glacier cover Sea surface temperature Snow cover Show all Show fewer
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
Variable Relevance for measuring this variable Operational limitations Explanation
Cloud cover 5 - marginal Infrequent coverage. TIR window channel(s) around 11 micrometers
Cloud top temperature 5 - marginal Infrequent coverage. TIR window channel(s) around 11 micrometers
Fire fractional cover 2 - very high Cloud sensitive.. Infrequent coverage. TIR window channel(s) around 11 micrometers
Fire radiative power 5 - marginal Cloud sensitive.. Infrequent coverage. TIR window channel(s) around 11 micrometers
Fire temperature 5 - marginal Cloud sensitive.. Infrequent coverage. TIR window channel(s) around 11 micrometers
Glacier cover 4 - fair Cloud sensitive.. Long time for mapping.. Daylight only. Panchromatic channel for glacier boundary detection, and SWIR channel(s) to screen ice from cloud
Leaf Area Index (LAI) 5 - marginal Cloud sensitive.. Daylight only.. Infrequent coverage. SWIR channel(s)
Sea surface temperature 5 - marginal Cloud sensitive.. Infrequent coverage. TIR window channel(s)
Sea-ice cover 5 - marginal Cloud sensitive.. Daylight only. Panchromatic channel
Snow cover 2 - very high Cloud sensitive.. Infrequent coverage.. Daylight only. SWIR (snow/cloud discrimination) and panchromatic (higher resolution) channels
Instrument: IRMSS