Nodal precession Precesia uzlov
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 ω p is the precession rate (in rad /s) R E is the body's equatorial radius ( 6 378 137 m for Earth) a is the semi-major axis of the satellite's orbit e is the eccentricity of the satellite's orbit ω is the angular velocity of the satellite's motion (2 π radians divided by its perio
