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ATTITUDE DETERMINATION AND CONTROL SYSTEM (ADCS), SUN SENSOR, AND STAR TRACKER

United States Patent Application

20150367966
A1
View the Complete Application at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
An ADCS module may be configured to use coordinate data from 2D photodiodes in one or more sun sensors to determine a sun vector. The ADCS module may then use the sun vector in reference to its own body faced (BF) coordinate system to calculate a change in the orientation of the space vehicle. The change in orientation mechanism may be accomplished by reaction wheels, ion thrusters, or other orientation altering mechanisms. A miniature, intelligent star tracker may be included that improves satellite attitude determination and pointing accuracy. An improved reaction wheel assembly may be included that is more robust and suitable for inclusion in small space vehicles.
Judd, Stephen (Los Alamos, NM), Dallmann, Nicholas (Los Alamos, NM), Proicou, Michael (Los Alamos, NM), Seitz, Daniel (Los Alamos, NM), Stein, Paul (Los Alamos, NM), Martinez, John (Los Alamos, NM), Kestell, Gayle (Los Alamos, NM), Warniment, Adam (Santa Fe, NM), Storms, Steven (Los Alamos, NM)
14/ 745,875
June 22, 2015
STATEMENT OF FEDERAL RIGHTS [0002] The United States government has rights in this invention pursuant to Contract No. DE-AC52-06NA25396 between the United States Department of Energy and Los Alamos National Security, LLC for the operation of Los Alamos National Laboratory.