BackForwardInstrument:  IRMSS-2 (HJ) 

Instrument details
Acronym IRMSS-2 (HJ)
Full name Infrared Multispectral Scanner - 2
Purpose Land observation for natural disasters monitoring
Short description 4-channnel NIR/SWIR/MWIR/TIR radiometer [see detailed characteristics below]
Background Developed after the IRMSS flown on HJ-1 A/B
Scanning Technique Pushbroom. Swath 720 km
Resolution 48 m at s.s.p.
Coverage / Cycle Global coverage in 4 days
Mass Power Data Rate

 

Providing Agency CAST
Instrument Maturity Flown on operational programme
Utilization Period: 2020 to 2025
Last update: 2021-06-16
Detailed characteristics

Central wavelength

Spectral interval

SNR or NEΔT @ specified input

0.925 µm

0.75-1.1 µm

…… @ ….. % albedo

1.65 µm

1.55-1.75 µm

…… @ ….. % albedo

3.7 µm

3.50-3.90 µm

…… @ ….. % albedo

11.5 µm

10.5-12.5 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 imagers
  • High-resolution multi-spectral VIS/IR imager
Mission objectives
Primary mission objectives
  • Fire fractional cover
  • Fire radiative power
  • Fire temperature
  • Land surface temperature
Evaluation of Measurements