Capella’s high revisit x-band constellation with InSAR capability will capture millimeter-scale change’s on the Earth’s surface. Interferometric synthetic aperture radar is a radar technique used in geodesy and remote sensing. This geodetic method uses 2 or more synthetic aperture radar (SAR) images to generate maps of surface deformation or digital elevation, using differences in the phase of the waves returning to the satellite or aircraft. The technique can potentially measure millimeter-scale changes in deformation over spans of days to years. It has applications for geophysical monitoring of natural hazards, for example earthquakes, volcanoes and landslides, and in structural engineering, in particular monitoring of subsidence and structural stability.

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