Перегляд за Автор "Karpenko, G. F."

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  • Ескіз
    Документ
    COMPARISON OF EFFICIENCY OF LOCAL THRESHOLDING ALGORITHM AND THE PROPOSED ALGORITHM FOR SEGMENTATION OF SPACE OBJECTS’ (SO) IMAGES AGAINST THE STARRY SKY BACKGROUND
    (Astroprint, 2010) Strygin, N. Z.; Sukhov, P. P.; Karpenko, G. F.
    In the article are presented comparative results of the space objects separation algorithms test on the television images of the sidereal sky regions - both the local thresholding method with the scanning apertures of various sizes and the new algorithm developed at the ОАО. Advantages of the ОАО algorithm are shown.
  • Ескіз
    Документ
    ON THE ADVANTAGES OF PHOTOMETRIC OBSERVATIONS OF THE GEOSTATIONARY SATELLITES AT SMALL PHASE ANGLES
    (Astroprint, 2014) Sukhov, P. P.; Karpenko, G. F.; Sukhov, K. P.; Epishev, V. P.; Motrunych, I. I.; Kudzej, I.; Dubovsky, P. A.
    As a rule, to determine photometric and dynamic characteristics of geostationary satellites required for their identification, long-lasting (from a half of the year to one year) photometric observations are needed at GSS different positions relative to the observer. The authors suggest conducting photometric measurements of GSS when they enter and exit the Earth's shadow near equinoxes. On these dates the GSS brightness increases by several magnitudes, so the use of telescopes with a mirror diameter of 50-70 cm can be effective. For shorter periods it is possible to get more information about the reflective properties of the object than during long-term observations at large phase angles. Several examples of photometric and dynamic characteristics of several GSS obtained near equinoxes are presented here.
  • Ескіз
    Документ
    PHOTOMETRICAL RESEARCH OF GSS «INTELSAT 10-02»
    (Astroprint, 2010) Sukhov, P. P.; Karpenko, G. F.; Epishev, V. P.; Motrunych, I. I.
    On example of the studies the obtained coordinate and photometrical data GSS «Intelsat 10-02» is shown as possible surveillance with the help of ground-based optical facilities dynamic state satellite and his behaviors on orbit. The analysis of variation character of the light curves in B,V,R filters, time intervals between the flashes, the color indexes variation shows that the systems of stabilization of the platform, the transceiving antennas and the solar panels worked in operating normal mode during the dates of observation. The solar panels orientation relative to the Sun maintains well enough, rotated practically along the equtor plane tracking the Sun’s path (the Earth’s rotation). Orientation to axis of the rotation of the platform practically remains to be unchanged to direction on the centre of the masses of the Earth.
  • Ескіз
    Документ
    The conditions of an active equatorial GSS entering the Earth’s shadow
    (Astroprint, 2010) Karpenko, G. F.; Murnikov, Borys O.; Suhov, P. P.; Мурніков, Борис Олександрович; Мурников, Борис Александрович
    In this article we describe the conditions of an active GSS entry and exit from the Earth’s shadow relative to the plane of the Earth’s equator with a small inclination of the orbit to the equator.