TRMM Satellite Sees System 99L's Rainfall (image) NASA/Goddard Space Flight Center Caption NASA's Tropical Rainfall Measuring Mission (TRMM) satellite captured the rainfall within System 99L on Oct. 20 at 0410 UTC (12:10 a.m. EDT) and noticed light to moderate rainfall within the system. The yellow and green areas indicate moderate rainfall between .78 to 1.57 inches per hour. Credit NASA/SSAI, Hal Pierce 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.