“…The CSK system is a space-borne, four-satellite constellation, which is fully operational since 2011. CSK satellites are equipped with SAR sensors that operate at X-band in sun-synchronous orbits (Coletta et al, 2008;Grimani et al, 2016). The CSK SAR constellation enables much more frequent revisits to a specific location compared to the SAR coverage from a single-satellite mission.…”