BackForwardInstrument:  COSI 

Instrument details
Acronym COSI
Full name Corea SAR Instrument
Purpose High-resolution all-weather multi-purpose imager for ocean, land and ice. Most useful for reconnaisance
Short description Synthetic Aperture Radar with Active Phase array - Frequency: 9.66 GHz (X-band) [see detailed characteristics below]
Background Consolidated technology
Scanning Technique Spotlight / Strip / ScanSAR - Field of Regard 185-490 km (nominal) with possibility of extension from 490 to 675 km. Duty cycle: 2 min/orbit, i.e. 2 %
Resolution 1 m @ Spotlight, 3 m @ Strip, 20 m @ ScanSAR
Coverage / Cycle Depending on pointing strategy
Mass 520 kg Power 600 W Data Rate 310 Mbps

 

Providing Agency KARI
Instrument Maturity Backed by strong heritage
Utilization Period: 2013 to 2029
Last update: 2023-02-02
Detailed characteristics
Operation mode Resolution Swath Polarisation

High Resolution mode

 1 m 5 km HH or VV or HV or VH, selectable

Standard mode

 3 m 30 km HH or VV or HV or VH, selectable

Wide Swath mode

 20 m 100 km HH or VV or HV or VH, selectable
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
  • Active and radio-occultation sensor
  • Imaging radar (SAR)
WIGOS Subcomponents
  • Subcomponent 1
  • SAR imagers and altimeters
  • SAR imager
Mission objectives
Primary mission objectives
  • Fraction of vegetated land
  • Glacier motion
  • Glacier topography
  • Land cover
  • Land surface topography
  • Soil moisture at surface
  • Soil type
  • Vegetation type
Evaluation of Measurements