BackForwardInstrument:  AVNIR 

Instrument details
Acronym AVNIR
Full name Advanced Visible and Near-Infrared Radiometer
Purpose High-resolution land and vegetation observation
Short description 5-channel VIS/NIR radiometer inclusive one panchromatic [see detailed characteristics below]
Background Evolution of the Multi-spectral Electronic Self-Scanning Radiometer (MESSR) flown on MOS
Scanning Technique Pushbroom, 7000 pixel/line, swath 80 km s.s.p., possible to be pointed cross-track within a swath of 1400 km
Resolution 16 m s.s.p. (8 m the panchromatic channel)
Coverage / Cycle Global coverage in 40 days, in daylight. With strategic pointing, one place can be observed every 2 days
Mass 250 kg Power 300 W Data Rate

 

Providing Agency JAXA
Instrument Maturity Flown on an R&D satellite
Utilization Period: 1996 to 1997
Last update: 2017-03-27
Detailed characteristics
Central wavelength Spectral interval SNR @ specified albedo
0.46 µm 0.42 - 0.50 µm 200 @ 25 % albedo
0.56 µm 0.52 - 0.60 µm 200 @ 29 % albedo
0.65 µm 0.61 - 0.69 µm 200 @ 41 % albedo
0.825 µm 0.76 - 0.89 µm 200 @ 59 % albedo
Panchromatic 0.52 - 0.69 µm 100 @ 100 % albedo or 5 @ 3.3 % albedo
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
  • Biomass
  • Fraction of Absorbed PAR (FAPAR)
  • Fraction of vegetated land
  • Land cover
  • Leaf Area Index (LAI)
  • Normalised Difference Vegetation Index (NDVI)
  • Vegetation type
Evaluation of Measurements