BackForwardInstrument:  HiRAIS 

Instrument details
Acronym HiRAIS
Full name High Resolution Advanced Imaging System
Purpose High-resolution land observation, disaster monitoring
Short description 5-channel VNIR radiometer including one panchromatic [see detailed characteristics below]
Background Follow-on of DMAC flown on DubaiSat-1
Scanning Technique Pushbroom. Swath 12 km, addressable within a field or regard of 720 km
Resolution PAN: 1 m, multispectral 4 m, at s.s.p.
Coverage / Cycle Global coverage in 6 months. Minimum revisit time for a specific area: 4 days
Mass 50 kg Power 100 W Data Rate 160 Mbps

 

Providing Agency EIAST
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2014 to 2025
Last update: 2021-06-17
Detailed characteristics
Central wavelength Spectral interval SNR @ specified albedo
465 nm 420 - 510 nm ……… @ …… % albedo 
545 nm 510 - 580 nm ……… @ …… % albedo 
660 nm 600 - 720 nm ……… @ …… % albedo 
825 nm 760 - 890 nm ……… @ …… % albedo 
665 (PAN) 420 - 890 nm ……… @ …… % 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