astroforge.common.R_moon_MEMED

astroforge.common.R_moon_MEMED(time)

Low fidelity position of Moon in MEMED (Montenbruck & Gill, p. 70). The input time is given in MJD. The output units are in km. The following relations allow the computation of lunar longitude and latitude with a typical accuarcy of several arcminutes and about 500 km in the lunar distance. The calculation is based on five fundamental arguments: the mean longitude, L0, of the Moon; the Moon’s mean anomaly, l; the Sun’s mean anomaly, lprime; the mean angular distance of the Moon’ from the ascending node, F; and the difference, D, betwen the mean longitudes of the Sun and the Moon. The longitude of the ascending node, Omega, is not explicity employed (Omega = L0 - F).