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Determination of parameters of attitude motion of a small communication satellite using the data of measurements of current of solar panels

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Abstract

A communication satellite (small spacecraft) injected into a geosynchronous orbit is considered. Flywheel engines are used to control the rotational spacecraft motion. The spacecraft after the emergency situation has passed into a state of uncontrolled rotation. In this case, no direct telemetric information about parameters of its rotational motion was accessible. As a result, the problem arose to determine the rotational satellite motion according to the available indirect information: current taken from the solar panels. Telemetric measurements of solar panel current obtained on the time interval of a few hours were simultaneously processed by the least squares method integrating the equations of rotational satellite motion. We present the results of processing 10 intervals of the measurement data allowing one to determine the real rotational spacecraft motion and to estimate the total angular momentum of flywheel engines.

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Authors and Affiliations

  1. Khrunichev State Research and Production Space Center, ul. Novozavodskaya 18, Moscow, 121087, Russia

    A. A. Davydov

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  1. A. A. Davydov
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Original Russian Text © A.A. Davydov, 2011, published in Kosmicheskie Issledovaniya, 2011, Vol. 49, No. 4, pp. 345–354.

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Davydov, A.A. Determination of parameters of attitude motion of a small communication satellite using the data of measurements of current of solar panels. Cosmic Res 49, 335–344 (2011). https://doi.org/10.1134/S0010952511030051

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  • DOI: https://doi.org/10.1134/S0010952511030051

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