NASA Satellite Image of System 99S (image) NASA/Goddard Space Flight Center Caption The AIRS instrument aboard NASA's Aqua satellite captured an infrared image of System 99S on Feb. 15 at 0441 UTC. The strongest convection (purple) was over the Timor Sea and represented in thunderstorm cloud-top temperatures as cold as or colder than -63 Fahrenheit (-52 Celsius). Credit NASA JPL, Ed Olsen Usage Restrictions None 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.