BackForwardInstrument:  IIR 

Instrument details
Acronym IIR
Full name Imaging Infrared Radiometer
Purpose To support the CALIPSO mission (main instrument: CALIOP, nadir-viewing). Specific for cirrus clouds
Short description Three-channel IR radiometer [see detailed characteristics below]
Background Consolidated technology
Scanning Technique Push-broom, swath 64 km surrounding the CALIOP viewing area
Resolution 1 km
Coverage / Cycle Global coverage in 16 d (orbit repeat cycle) for cells of 100 km side
Mass 24 kg Power 27 W Data Rate 50 kbps

 

Providing Agency CNES
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2006 to 2023
Last update: 2022-07-27
Detailed characteristics
Central wavelength Spectral interval NEΔT @ specified scene temperature
8.65 µm 8.25 - 9.05 µm 0.3 K @ 300 K
10.60 µm 10.2 - 11.0 µm 0.3 K @ 300 K
12.00 µm 11.6 - 12.4 µm 0.3 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
  • Moderate resolution optical imager
WIGOS Subcomponents No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Cloud cover
  • Cloud top height
  • Cloud top temperature
  • Integrated Water Vapour (IWV)
Evaluation of Measurements