Abstract The method and the results of investigating the low-frequency component of microaccelerations onboard the Foton-11satellite are presented. The investigation was based on the processing of data of the angular velocity measurements made by the German system QSAM, as well as the data of measurements of microaccelerations performed by the QSAM system and by the French accelerometer BETA. The processing was carried out in the following manner. A low-frequency (frequencies less than 0.01 Hz) component was selected from the data of measurements of each component of the angular velocity vector or of the microacceleration, and an approximation was constructed of the obtained vector function by a similar function that was calculated along the solutions to the differential equations of motion of the satellite with respect to its center of mass. The construction was carried out by the least squares method. The initial conditions of the satellite motion, its aerodynamic parameters, and constant biases in the measurement data were used as fitting parameters. The time intervals on which the approximation was constructed were from one to five hours long. The processing of the measurements performed with three different instruments produced sufficiently close results. It turned out to be that the rotational motion of the satellite during nearly the entire flight was close to the regular Eulerian precession of the axially symmetric rigid body. The angular velocity of the satellite with respect to its longitudinal axis was about 1 deg/s, while the projection of the angular velocity onto the plane perpendicular to this axis had an absolute value of about 0.2 deg/s. The magnitude of the quasistatic component of microaccelerations in the locations of the accelerometers QSAM and BETA did not exceed 5 × $ 10^{–5} $–$ 10^{–4} $m/$ s^{2} $for the considered motion of the satellite.


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    Titel :

    Analysis of Low-Frequency Microaccelerations onboard the Foton-11Satellite


    Beteiligte:
    Sazonov, V. V. (Autor:in) / Chebukov, S. Yu. (Autor:in) / Abrashkin, V. I. (Autor:in) / Kazakova, A. E. (Autor:in) / Zaitsev, A. S. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2001




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    BKL:    55.60 Raumfahrttechnik / 39.00 Astronomie: Allgemeines / 50.93 Weltraumforschung
    Lokalklassifikation TIB:    770/3520/8000



    Low-Frequency Microaccelerations onboard the Foton-11 Satellite

    Sazonov, V. V. / Chebukov, S. Yu. / Abrashkin, V. I. et al. | Online Contents | 2004


    Analysis of Low-Frequency Microaccelerations onboard the Foton-11Satellite

    Sazonov, V. V. / Chebukov, S. Yu. / Abrashkin, V. I. et al. | Springer Verlag | 2001


    Low-Frequency Microaccelerations onboard the Foton-11 Satellite

    Sazonov, V. V. / Chebukov, S. Yu. / Abrashkin, V. I. et al. | Springer Verlag | 2004


    Quasistatic Microaccelerations onboard the Foton Satellite during Its Flight at High-Altitude Orbits

    Sazonov, V. V. / Abrashkin, V. I. / Kazakova, A. E. et al. | Online Contents | 2004


    Quasistatic Microaccelerations onboard the Foton Satellite during Its Flight at High-Altitude Orbits

    Sazonov, V. V. / Abrashkin, V. I. / Kazakova, A. E. et al. | Springer Verlag | 2004