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Instrument details
Acronym
IRMSS-2
Full name
Infrared Multispectral Scanner - 2
Purpose
Land observation for natural disasters monitoring
Short description
4-channnel VIS/SWIR/TIR radiometer [see detailed characteristics below]
Background
Evolution of the IRMSS flown on CBERS 1 and 2
Scanning Technique
Pushbroom. Swath 120 km
Resolution
40 m VIS and SWIR, 80 m TIR
Coverage / Cycle
Global coverage in 26 days
Mass
Power
Data Rate
17 Mbps
Providing Agency
CAST
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
2013-12-09 to 2013-12-09
Last update:
2021-06-16
Detailed characteristics
Central wavelength
Spectral interval
SNR or NEΔT @ specified input
0.700 µm
0.50-0.9 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
Subcomponent 1 High-resolution multi-spectral VIS/IR imager
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 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 1 - primary Cloud sensitive.. Infrequent coverage. VIS and TIR channels
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 5 - marginal Cloud sensitive.. Long time for mapping.. Daylight only. VIS channels
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. VIS channel(s)
Snow cover 5 - marginal Cloud sensitive.. Infrequent coverage.. Daylight only. VIS channel(s)
Instrument: IRMSS-2