PMM

Content which is not specifically affiliated with GPM or TRMM, but which is about the Precipitation Measurement Missions in general.

PPS Down for Temporary Maintenance 6/7/16

The PPS (Precipitation Processing System) will be down today, June 07, 2016 from 8:00am -14:00pm EDT (12:00 - 18:00 UTC). for scheduled maintenance.

During this time all data transfers between PPS source and its consumer systems (GDAAC/DISC) as well as Science User services (FTP and STORM access) will be unavailable.

You will be informed when PPS systems become available. We apologize for any inconvenience this may cause. 

Watershed Science Summer Institute at NASA’s Goddard Space Flight Center

Thank you for your interest in the Watershed Science Summer Institute to be held at NASA’s Goddard Space Flight Center. Read a more detailed description of the program, including dates and expectations here. Unfortunately, we are no longer accepting applications for the 2015 program. For existing applicants or others with any questions about the program, please contact Dorian Janney at dorian.w.janney@nasa.gov

Data Sources

This section outlines the primary sources for downloading GPM and TRMM precipitation data from archive sites at Goddard Space Flight Center, including basic instructions for using each source.

NOTE: Use of the PPS FTP and STORM requires you to first register your email address. Click here to register.

TRMM Satellite Out of Station-keeping Fuel

Since December 1997, TRMM and the instruments it carries have provided valuable information to researchers, the applications community, and the public. On July 8, 2014, pressure readings from the fuel tank indicated that TRMM is at the end of its fuel. As a result, NASA has ceased station keeping maneuvers and TRMM has begun its drift downward from its operating altitude of 402 km. A small amount of fuel has been retained to conduct debris avoidance maneuvers to ensure the satellite remains safe during the drift down.

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