by Swarajya Staff - Mar 11, 2021 12:23 PM Image from Wikipedia. Artistâs concept of the NASA-ISRO Synthetic Aperture Radar (NISAR) satellite in orbit. The Indian Space Research Organisation (ISRO) has shipped the S-band Synthetic Aperture Radar (SAR) to the National Aeronautics and Space Administration (NASA) as part of the Indo-US joint initiative to develop the worldâs first earth observation satellite that will have two separate radars to produce high-resolution images. On 4 March, the S-band SAR was virtually flagged off from ISROâs Space Application Centre in Ahmedabad to the Jet Propulsion Laboratory of the NASA in Californiaâs Pasendana. The NASA will now integrate this S-band with the L-band payload which it is building. Upon the completion of the integration process of the two radars, the NASA will send it back to India. The remaining parts of the NASA-ISRO SAR (NISAR) satellite will be built domestically and the ISRO will subsequently utilise the GSLV Mk-II rocket to launch NISAR from the Sriharikota launchpad.