topocentric_ra_and_​dec_from_r(r,lla,t)

Geocentric Coordinates (ECI) to Topocentric equatorial system
This function calculates the Topocentric equatorial system
right ascension and the declination from the geocentric
equatorial position vector
r - position vector in meters
t - Universal Coordinated Time i.e . [2017 02 02 11 48 28];
lla - Latitude, longitude, altitude (LLA) coordinates M-by-3 array
degrees and meters
ra - Topocentric right ascension (degrees)
dec - Topocentric declination (degrees)