Physics
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991fmet.symp..151k&link_type=abstract
In NASA. Goddard Space Flight Center, Flight Mechanics/Estimation Theory Symposium, 1991 p 151-166 (SEE N92-14070 05-13)
Physics
Attitude (Inclination), Attitude Control, Attitude Indicators, Background Radiation, Cosmic Background Explorer Satellite, Explosions, Infrared Radiation, Sky Radiation, A Stars, Algorithms, Cosmology, Surveys
Scientific paper
The Cosmic Background Explorer (COBE) spacecraft was launched in November 1989 by NASA to survey the sky for primordial radiation left from the Big Bang explosion. The success of the mission requires an accurate determination of the spacecraft attitude. While the accuracy of the attitude obtained from the attitude sensors is adequate for two of the experiments, the higher accuracy required by the Diffuse Infrared Background Experiment (DIRBE) is obtained by using the DIRBE instrument as a special type of star sensor. Presented here is an overview of the attitude processing algorithms used at the Cosmology Data Analysis Center (CDAC) and the results obtained from the flight data.
Freedman Ian
Kumar Krishna V.
Patt Frederick S.
Wright Louis E.
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