BackForwardInstrument:  MX-LWIR 

Instrument details
Acronym MX-LWIR
Full name Multispectral - Long Wave Infrared
Purpose Frequent high-resolution observation of surface temperatures
Short description 6-channel radiometer in the TIR range [see detailed characteristics below]
Background Complementary to MX-VNIR
Scanning Technique Mechanical, addressable everywhere in the disc with variable area coverage
Resolution 1.5 km at s.s.p.
Coverage / Cycle Depending on the size of the scanned area. 30 min for the India region
Mass Power Data Rate

 

Providing Agency ISRO
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2021 to 2029
Last update: 2021-06-16
Detailed characteristics

Central wavelength

Spectral interval

NEΔT @ specified input

7.35 µm

7.1-7.6 µm

0.15 K @ 300 K

8.50 µm

8.3-8.7 µm

0.15 K @ 300 K

9.60 µm

9.4-9.8 µm

0.15 K @ 300 K

10.8 µm

10-3-11.3 µm

0.15 K @ 300 K

12.0 µm

11.5-12.5 µm

0.15 K @ 300 K

13.25 µm

13.0-13.5 µm

0.15 K @ 300 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
  • Sea surface temperature
Evaluation of Measurements