DPR Closeup
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Closeup of the Dual-Frequency Precipitation Radar (DPR).
The DPR was built at JAXA and is being transported to NASA Goddard Space Flight Center for integration onto the GPM Core Observatory.
GPM
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KuPR during Thermal Vacuum Testing
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KuPR during thermal vacuum testing at Tsukuba Space Center, Japan
DPR Ka-band Waveguide Closeup
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A close-up of the Dual-frequency Precipitation Radar (DPR) ka-band waveguide.
The DPR was built at JAXA and is being transported to NASA Goddard Space Flight Center for integration onto the GPM Core Observatory.
KaPR Range Testing
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KaPR during Range Testing at Tsukuba Space Center, Japan.
KuPR Range Testing
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KuPR during Range Testing at Tsukuba Space Center, Japan
JAXA Scientist next to the DPR
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A JAXA scientist standing next to the Dual-frequency Precipitation Radar (DPR) instrument, which will be integrated onto the GPM Core Observatory satellite at Goddard Space Flight Center.
The Japanese-built radar is a new instrument designed to take 3-D measurements of raindrops and snowflakes.
Spaceborne Precipitation Radar Ships from Japan to U.S.
By Aries Keck, NASA Goddard Space Flight Center Original www.nasa.gov Press Release (published 2/8/12) GREENBELT, Md. – Japanese scientists and engineers have completed construction on a new instrument designed to take 3-D measurements of the shapes, sizes and other physical characteristics of both raindrops and snowflakes. The instrument will be shipped from Japan to NASA's Goddard Space Flight Center, Greenbelt, Md., to be integrated into an upcoming NASA Earth science satellite. Designed and built by the Japan Aerospace Exploration Agency (JAXA) and Japan's National Institute of Information
GPM's Snow Ground Validation Underway
The GPM Cold-season Precipitation Experiment (GCPEx) to measure falling snow is currently underway in Ontario, Canada. The field campaign, which runs from January 17 to February 29, 2012, is designed to improve satellite estimates of falling snow and test ground validation capabilities for GPM. Learn more about GCPEx: Airborne Campaign to Measure Falling Snow (press release) GCPEx Overview GCPEx Campaign Blog Ground Validation Image Gallery GPM on Twitter GPM on Facebook
GPM Solar Array Deployment Test
(ambient audio only)
This and other similar tests will verify the deployment function of the GPM Core Observatory solar arrays in ambient condition. Data such as deployment time, hinge forces, and system stiffness will be gathered and reviewed for requirement compliance. The qualification unit was assembled with flight and non-flight components. The flight components will be removed and integrated with the flight unit after qualification testing.