Aqua Image of Rosa (IMAGE) NASA/Goddard Space Flight Center Caption At 4:25 a.m. EDT (0825 UTC) on Sept. 25, 2018, the MODIS instrument aboard NASA's Aqua satellite looked at Tropical Depression 20E in infrared light. MODIS found coldest cloud tops (yellow) had temperatures near minus 80 degrees Fahrenheit (minus 62.2 degrees Celsius) around the center and southwest of the center. It later became Tropical Storm Rosa. Credit NASA/NRL 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.