The Alaska Satellite Facility (ASF) is part of the Geophysical Institute (GI) at the University of Alaska Fairbanks. ASF oper ... ates the NASA archive of synthetic aperture radar (SAR) data from a variety of satellites and aircraft, providing these data and associated specialty support services to researchers in support of NASA's Earth Science Data and Information System (ESDIS) project. Our mission is making remote-sensing data accessible: ASF downlinks, processes, archives, and distributes remote-sensing data to scientific users around the world. ASF promotes, facilitates, and participates in the advancement of remote sensing to support national and international Earth science research, field operations, and commercial applications. ASF commits to provide the highest quality data and services in a timely manner. read more