Determination of attitude motion of the Foton M-3 satellite according to the data of onboard measurements of the Earth's magnetic field

Details Determination of attitude motion of the Foton M-3 satellite according to the data of onboard measurements of the Earth's magnetic field Determination of attitude motion of the Foton M-3 satellite according to the data of onboard measurements of the Earth's magnetic field

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cosre..48..246b&link_type=abstract

Cosmic Research, Volume 48, Issue 3, pp.246-259

Mathematics

Scientific paper

The results of reconstruction of rotational motion of the Foton M-3 satellite during its uncontrolled flight in September 2007 are presented. The reconstruction was performed by processing the data of onboard measurements of the Earth’s magnetic field obtained by the DIMAC instruments. The measurements were carried out continuously throughout the flight, but the processing technique dealt with the data portions covering time intervals of a few orbital revolutions. The data obtained on each such interval were processed jointly by the least squares method with using integration of the equations of satellite motion relative to its center of mass. When processing, the initial conditions of motion and the used mathematical model’s parameters were estimated. The results of processing 16 data sets gave us complete information about the satellite motion. This motion, which began at a low angular velocity, had gradually accelerated and in five days became close to the regular Euler precession of an axisymmetric solid body. At the end of uncontrolled flight the angular velocity of the satellite relative to its lengthwise axis was 0.5 deg/s; the angular velocity projection onto the plane perpendicular to this axis had a magnitude of about 0.18 deg/s.

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