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Zobrazujú sa príspevky z dátumu november, 2019

Nodal precession Precesia uzlov

Obraz
Nodal precession is the precession of the orbital plane of a satellite around the rotational axis of an astronomical body such as Earth.Rate of precession The rate of precession depends on the inclination of the orbital plane to the equatorial plane, as well as the orbital eccentricity. For a satellite in a prograde orbit around Earth, the precession is westward (nodal regression), the node and satellite move in opposite directions.[1] A good approximation of the precession rate is {\displaystyle \omega _{\mathrm {p} }=-{\frac {3}{2}}\cdot {\frac {{R_{\mathrm {E} }}^{2}}{\left(a\left(1-e^{2}\right)\right)^{2}}}J_{2}\omega \cos i} where ωp is the precession rate (in rad/s)RE is the body's equatorial radius (6378137 m for Earth)a is the semi-major axis of the satellite's orbite is the

Starlink SpaceX

Obraz
Starlink (satellite constellation) Starlink is a satellite constellation being constructed by American company SpaceX,[1][2] to provide satellite Internet access.[3][4]
https://en.wikipedia.org/wiki/Starlink_(satellite_constellation)



FázaVýška (km)Počet
rovín Satelitov
v rovine Počet satelitovInklinácia
(stupňov) Termín dokončenia  na 1/2Termín dokončenia Súčasne funkčných
(8. jan 2020) 155072221 58453marec 2024marec 20271801 11032501 60053,801 1308504007401 2755753758101 325675450700 2335,92 49342november 2024november 20270340,82 478480345,62 547530spolu11 927
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