Goddard Space Flight Center

GPM Completes First Dry Run

Engineers working on the GPM Core Observatory
Image Caption: 
Engineers check on the GPM spacecraft after successful completion of its first comprehensive performance test.

The silver disc and drum (center) is the GPM Microwave Imager, and the large block on the base is the Dual-frequency Precipitation Radar. The tall golden antenna is the High Gain Antenna for communications.

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High Gain Antenna System Testing

The High Gain Antenna System onboard the GPM Core Observatory was successfully deployed and functionally tested after being integrated onto the spacecraft late last year. The HGAS is responsible for relaying data collected by the satellite’s instruments to Tracking and Data Relay Satellite System (TDRS) satellites.  Data is sent back to Goddard Space Flight Center via a NASA wide-area network.

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