EO·Atlas
COSI (Corea SAR Instrument)
Compiled from public sources on 2026-06-16. Not independently verified by Thales Alenia Space.
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X-band multi-mode synthetic aperture radar payload flown on KOMPSAT-5.
COSI, the Corea SAR Instrument, is a multi-mode X-band synthetic-aperture radar payload flown on KOMPSAT-5 and provided by Thales Alenia Space.[1][2] It is recorded at 9.66 GHz centre frequency with 9-240 MHz range bandwidth, nominal 20-45 degree incidence access, extended access to 55 degrees, and selectable single polarisation among HH, HV, VH and VV.[1]
The defensible buyer-level mode baseline is the high-resolution, standard and wide-swath SAR collection classes, with extended access treated as conditional collection context rather than the baseline mode set.[1] That framing keeps COSI useful for X-band archive comparison while keeping detailed extended-mode variants separate from baseline tasking assumptions.[1][3]
COSI has demonstrated SAR backscatter and SAR backscatter change-detection use through the KOMPSAT-5 mission context.[1] The payload is buyer-relevant where X-band archive continuity, selectable linear polarisation and medium-to-high resolution SAR imaging are more important than a fully open mode matrix.[1][3]
Pricing not publicly listed by operator
Compositional position
- SAR backscatter imagingvia KOMPSAT-5
COSI is KOMPSAT-5's operational X-band SAR payload.
- SAR backscatter - change detectionvia KOMPSAT-5
COSI supports HR/ST/WS SAR imaging modes suitable for change detection.
None on record.
- [1]KOMPSAT-5 mission and COSI sensor parameters, mCubethird party2026-06-16
- [2]KOMPSAT-5 satellite record, WMO OSCARagency doc2026-06-16
- [3]KOMPSAT-5 product page, e-GEOSoperator datasheet2026-06-16