JERS-1/SAR L0 SAR Data is obtained from the SAR sensor onboard JERS-1 and produced by National Space Development Agency of Japan (NASDA).JERS-1 which mounts SAR is Sun-synchronous sub-recurrent Orbit satellite launched on February 11, 1992. This dataset includes Unprocessed Signal Data Product Data. Data which has undergone absolutely no correction is recorded. Data required for higher level correction is ALOS recorded. It is same as the unprocessed data of other sensors prepared at the EOC. The provided format is CEOS.