JPL Technical Report Server

On orbit performance validation and verification of the SMAP instrument antenna

Show simple item record

dc.contributor.author Focardi, Paolo
dc.contributor.author Spencer, Michael W.
dc.contributor.author Piepmeier, Jeffrey R.
dc.date.accessioned 2019-06-12T15:26:03Z
dc.date.available 2019-06-12T15:26:03Z
dc.date.issued 2017-03-19
dc.identifier.citation EuCAP 2017, Paris, France, March 19-24, 2017 en_US
dc.identifier.clearanceno 16-4635
dc.identifier.uri http://hdl.handle.net/2014/46243
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, 2017 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 On orbit performance validation and verification of the SMAP instrument antenna en_US
dc.type Preprint en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search


Browse

My Account