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SMAP instrument antenna, on orbit performance validation and verification

Show simple item record Focardi, Paolo Piepmeier, Jeffrey R. 2019-05-01T17:26:46Z 2019-05-01T17:26:46Z 2016-06-26
dc.identifier.citation 2016 Antennas and Propagation Society Symposium, Fajardo, Puerto Rico, June 26 - July 1, 2016 en_US
dc.identifier.clearanceno 16-0245
dc.description.abstract NASA’s Soil Moisture Active Passive (SMAP) Mission is currently flying in a 685 km orbit. Featuring a Synthetic Aperture Radar (SAR) and a radiometer sharing the same antenna, SMAP was developed in collaboration between Jet Propulsion Laboratory (JPL) and Goddard Space Flight Center (GSFC). While the radar requirements on the instrument antenna were more benign from an RF point of view, the radiometer requirement were more difficult to meet because of the stability required by the radiometer to operate to its full potential. The instrument antenna performance was predicted by a very detailed RF model and verified by measuring a 1/10th scale model with great accuracy before launch. Once in orbit, we had the opportunity to measure the antenna performance for both the radiometer and the radar and compare it with the predicted performance given by our RF model. This paper discusses the work done both at JPL and GSFC in order to verify and validate the on orbit performance of the SMAP instrument antenna. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016 en_US
dc.subject on orbit performance en_US
dc.subject on orbit validation and verification en_US
dc.subject reflector antenna en_US
dc.subject offset reflector en_US
dc.subject SAR en_US
dc.subject radiometer en_US
dc.title SMAP instrument antenna, on orbit performance validation and verification en_US
dc.type Preprint en_US

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