The change indices of solar and geomagnetic activity and their influence on the dinamics of drag of artificial satellite
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Дата
2016
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Одеський національний університет імені І. І. Мечникова
Анотація
The time-frequency and multiple
regression analysis of the orbital parameter characterizing
the drag of satellites on circular and elliptical orbits with
different perigees and orbital inclinations in the
atmosphere of the Earth was being conducted in 23-24
cycles of solar activity. Among the factors influencing
braking dynamics of satellites were taken: W – Wolf
numbers; Sp – the total area of sunspot groups of the
northern and southern hemispheres of the Sun, F10.7 – the
solar radio flux at 10,7 cm; E – electron flux with energies
more than 0,6 MeV и 2 MeV; planetary, high latitude and
middle latitude geomagnetic index Ap. In the atmospheric
drag dynamics of satellites, the following periods were
detected: 6–year, 2.1–year, annual, semi-annual, 27–days,
13– and 11–days. Similar periods are identified in indexes
of solar and geomagnetic activity. Dependence of the
periods of satellites motion on extremes of solar activities
and space weather conditions was conducted.
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Odessa Astronomical publications = Одесские астрономические публикации = Одеські астрономічні публікації