BackForwardInstrument:  NAOMI (SSOT) 

Instrument details
Acronym NAOMI (SSOT)
Full name New AstroSat Optical Modular Instrument
Purpose High-resolution land observation, disasters monitoring
Short description 5 VIS/NIR channels including one panchromatic [see detailed characteristics below]
Background Consolidated technology
Scanning Technique Pushbroom. 1750 pixels/line (multispectral channels), 7000 pixels/line (PAN). Swath 10 km addressable within a field of regard of 800 km
Resolution 6 m multispectral, 1.5 PAN, at s.s.p.
Coverage / Cycle Global coverage in 6 months. Minimum revisit time for a specific area: 3 days
Mass 18.5 kg Power Data Rate 60 Mbps

 

Providing Agency ACE
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2012 to 2022
Last update: 2017-03-29
Detailed characteristics

Central wavelength

Spectral interval

SNR @ specified albedo

0.485 μm

0.45 - 0.52 μm

….. @ ….. % albedo

 0.565 μm

0.53 - 0.60 μm

….. @ ….. % albedo

0.655 μm

0.62 - 0.69 μm

….. @ ….. % albedo

0.825 μm

0.76 - 0.89 μm

….. @ ….. % albedo

 0.675 μm  (PAN)

0.45 - 0.90 μm

….. @ ….. % 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