DXL Payload (IMAGE) NASA/Goddard Space Flight Center Caption Personnel at the Wallops Flight Facility test the DXL payload's ability to connect with the Global Positioning Satellite (GPS) network which will be used to determine the location of the payload during flight. Credit NASA/Berit Bland Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.