COSI

Corea SAR Instrument

Satellites

KOMPSAT-5

Status

Close to launch - To be utilised in the period: 2011 to ~ 2016

Mission

High-resolution all-weather multi-purpose imager for ocean, land and ice.  Most useful for recognisance

Instrument type

Imaging radar - Synthetic Aperture Radar with Active Phase array - Frequency: 9.66 GHz (X-band)

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 %

Coverage/cycle

Depending on pointing strategy

Resolution

1 m @ Spotlight, 3 m @ Strip, 20 m @ ScanSAR

Resources

Mass: 520 kg  -  Power: 600 W  -  Data rate: 310 Mbps

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