The objective of this work is to validate the GSAM propagator using new data provided by the National Institute for Space Research (INPE) from SCD1 and SCD2 data collection satellites, with emphasis on long interval simulations without daily data updates. Originally, only 40 days of data were available to test the program, constraining any attempts to measure its precision more accurately. Recently, over two decades of data regarding both satellites' orbital and attitude parameters were provided, allowing further studies and validation of the program. The rotational motion equations are composed by the gravity gradient torque, aerodynamic torque, solar radiation pressure torque, residual and eddy current magnetic torques, the latter using a dipole geomagnetic model. The results are considered fitting when the mean deviation between the calculated variables and the real satellite data stay within 0.5× for the right ascension and declination angles and 0.5 rpm for the spin velocity. Intervals that meet the required precision were found for all years, from three to up to 15 days of simulation without data update. The consistent detection of such intervals further corroborate the use of the propagator to estimate the orientation of the satellites studied in their missions. ; The authors thank CNPq (Universal Project 421672/2016-1) for supporting the project.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Simulations without data updates using analytical attitude propagator GSAM for spin stabilized satellites


    Beteiligte:

    Erscheinungsdatum :

    2019-01-01


    Anmerkungen:

    CC/0000030325



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    600 / 629




    Analysis of analytical attitude propagators for spin-stabilized satellites

    Zanardi, M. C. / Celestino, C. C. / Borderes Motta, G. et al. | BASE | 2018

    Freier Zugriff

    Attitude Determination for Spin Stabilized Satellites from GPS Interferometry

    Lopes, R. V. F. / Fabri, S. M. / Ferreira, L. D. D. et al. | British Library Conference Proceedings | 1997



    Spin stabilized satellite's attitude analytical prediction

    Zanardi, Maria Cecília / Pereira, A. J. / Chiaradia, J. E. | BASE | 2012

    Freier Zugriff

    Spin-Stabilized Spacecrafts: Analytical Attitude Propagation Using Magnetic Torques

    Garcia, Roberta Veloso / Zanardi, Maria Cecilia F. P. S. / Kuga, Helio Koiti | BASE | 2009

    Freier Zugriff