Indian Space Research Organisation (ISRO) and Jet Propulsion Laboratory (JPL), National Aeronautics and Space Administration (NASA) are jointly working on the development of Dual Frequency (L and S band) Synthetic Aperture Radar Imaging Satellite named as NASA-ISRO Synthetic Aperture Radar (NISAR). The L-band SAR is being developed by JPL/NASA, While ISRo is developing S-band SAR.