Mathematics
Scientific paper
Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981esasp.160..361v&link_type=abstract
In ESA Spacecraft Flight Dyn. p 361-372 (SEE N82-14123 05-12)
Mathematics
Algorithms, Orbital Position Estimation, Planetary Mapping, Satellite Orientation, Star Trackers, Batch Processing, Celestial Reference Systems, Computer Systems Programs, Mathematical Models, Nutation, Signal Processing, Torque
Scientific paper
Attitude estimation algorithms for processing starmapper data are outlined. The error in the averaged estimate is one arcminute. An operator which adjusts estimator tolerances and/or trigger levels is included. Measurements are taken over one nutation period, or less, on line estimation results are sufficient. The recursive processor uses the output from the batch processor as input. It uses a reduced sky model, monitors operation of the estimation process on line, introduces statistical adaptation when necessary, and produces more detailed information on the attitude motion of the spacecraft, misalignments of the starmapper, spacecraft mass redistribution, and external torques.
Moek G.
Sonnenschein Frans J.
Vanwoerkom T. L. M. P.
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