BackForwardInstrument:  Radiometer(FireSat) 

Instrument details
Acronym Radiometer(FireSat)
Full name Multi-spectral IR radiometer for FireSat
Purpose To detect wildfires anywhere on Earth.
Short description
  • Six band multi-spectral IR radiometer
Background

Project in partnership with the Earth Fire Alliance (EFA)
Scanning Technique

Cross-track scanning with 1500 km swath
Resolution Average ground sample distance of 80m. The instrument can detect sites of fire ignition and hot spots as small as 5x5 m.
Coverage / Cycle First 3 satellites, will observe every point on Earth at least twice a day, with key wildfire-prone regions revisited more frequently.
Mass Power Data Rate

 

Providing Agency MUON SPACE
Instrument Maturity Flown on an R&D satellite
Utilization Period: TBD
Last update: 2025-02-03
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
  • Subcomponent 1
  • High-resolution multi-spectral VIS/IR imagers
  • High-resolution multi-spectral VIS/IR imager
Mission objectives
Primary mission objectives
  • Fire fractional cover
  • Fire radiative power
  • Fire temperature
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
Cloud cover4 - fairInfrequent coverage.MWIR and TIR window channels around 3.7 and 11 micrometers
Cloud top height4 - fairInfrequent coverage.TIR window channels around 11 micrometers to estimate cloud top height from its temperature
Cloud top temperature4 - fairInfrequent coverage.TIR window channels around 11 micrometers
Cloud type4 - fairInfrequent coverage.MWIR and TIR window channels around 3.7 and 11 micrometers
Fire fractional cover*1 - primaryInfrequent coverage.. Cloud sensitive.. Daylight only.MWIR and TIR window channels around 3.7 and 11 micrometers
Fire radiative power*1 - primaryCloud sensitive.. Infrequent coverage.MWIR and TIR window channels around 3.7 and 11 micrometers
Fire temperature*1 - primaryCloud sensitive.. Infrequent coverage.MWIR and TIR window channels around 3.7 and 11 micrometers
Land surface temperature3 - highCloud sensitive.. Infrequent coverage.MWIR and TIR window channels around 3.7 and 11 micrometers (high sensitivity to high temperature, cloud impact reduction, water vapour correction)
Sea surface temperature2 - very highCloud sensitive.. Infrequent coverage.MWIR and TIR window channels (cloud impact reduction, water vapour correction)
Integrated Water Vapour (IWV)4 - fairCloud sensitive.. Low troposphere dominant.. Infrequent coverage.TIR channels in the 11 micrometers split window