NASA Image of System 99P (IMAGE) NASA/Goddard Space Flight Center Caption This image of System 99P was captured on April 20, 2012 at 04:55 UTC (12:55 a.m. EDT) by the MODIS instrument onboard NASA's Aqua satellite. It was centered about 190 nautical miles north-northeast of Darwin, Australia, and showed some areas of strong thunderstorms west of its center of circulation. Credit NASA Goddard MODIS Rapid Response 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.