Mission Status

March 2015

The GPM Core Observatory successfully launched from Tanegashima Space Center, Japan, on February 27th, 2014 at 1:37pm EST. It is currently in orbit, and data from the mission is available for the public to download from a variety of sources and formats which are outlined on the PMM Data Access page.

Mission Updates

The GPM Microwave Imager (GMI) successfully completed Pre-Environmental Review (PER) on July 19-20, 2011, at Ball Aerospace in Colorado, which marks another key milestone for the GMI instrument. The GMI will undergo acoustic testing, vibration testing, and electromagnetic and thermal vacuum testing starting in August 2011. The GMI instrument is a multi-channel, conical-scanning, microwave radiometer, enabling the GPM Core Observatory to serve as a radiometric reference and also a transfer...
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The High Gain Antenna System (HGAS) completed vibration test and moved to the acoustic chamber for the acoustic test at Goddard Space Flight Center. The HGAS helps to provide directional pointing for the Radio Frequency communications antenna, used with NASA’s Tracking and Data Relay Satellite System. 
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The GPM Core Observatory structure successfully completed proof testing in the centrifuge facility at Goddard Space Flight Center. The satellite was tested at several different angles to simulate the increased feeling of gravity’s pull on the satellite during launch. Goddard's centrifuge can accelerate 2.5 tons to speeds so high that the payload experiences forces 30 times greater than the pull of Earth's gravity.
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GPM has successfully completed the GPM Mission Critical Design Review (CDR) on December 17, 2009. During this phase of the mission the activities are focused on the implementation of science and engineering plans for the mission. The engineering activities are focused on: Core Observatory development (in-house development at Goddard Space Flight Center, Greenbelt Maryland) GPM Microwave Imager (GMI) instrument development for flight units 1&2 (at Ball Aerospace, Boulder...
GPM has successfully completed the GPM Mission Key Decision Point - C (KDP-C) Review on December 2, 2009, which formally confirms the Implementation phase of the GPM Mission. Key Decision Point C (KDP-C) is the agency-level approval for the project to begin implementation, and baselines the project’s official schedule and budget.
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