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Seasat-A satellite scatterometer instrument evaluationThe Seasat-A satellite scatterometer (SASS) was designed to measure ocean surface wind speed and direction in twenty-four independent cells over a 1000-km swath. It operated in the interrupted CW mode at a frequency of 14.6 GHz with four fan beam antennas and used Doppler filtering in the receiver for resolving the cells on the surface. The instrument began operating in space on July 6, 1978, and gathered normalized radar cross section data for approximately 2290 h. The purpose of this paper is to describe the in-orbit evaluation of the SASS hardware and its compatibility with the spacecraft. It has been determined that the scatterometer operated flawlessly throughout the mission, met all design requirements, and established a good data base for geophysical processing.
Document ID
19800057900
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Johnson, J. W.
(NASA Langley Research Center Hampton, VA, United States)
Williams, L. A., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Bracalente, E. M.
(NASA Langley Research Center Hampton, VA, United States)
Beck, F. B.
(NASA Langley Research Center Hampton, VA, United States)
Grantham, W. L.
(NASA Langley Research Center Hampton, Va., United States)
Date Acquired
August 10, 2013
Publication Date
April 1, 1980
Publication Information
Publication: IEEE Journal of Oceanic Engineering
Volume: OE-5
Subject Category
Spacecraft Instrumentation
Accession Number
80A42070
Distribution Limits
Public
Copyright
Other

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