AIRS Image of 15E (IMAGE) NASA/Goddard Space Flight Center Caption The AIRS instrument aboard NASA's Aqua satellite captured this image of Tropical Depression 15E on Sept. 13 at 6:11 a.m. EDT (1011 UTC), and purple indicates the strongest storms. Credit Credits: NASA JPL, Ed Olsen 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.