chaosmagpy.coordinate_utils.zenith_angle

chaosmagpy.coordinate_utils.zenith_angle(time, theta, phi)

Compute the solar zenith angle.

Parameters:

timendarray, shape (…)

Time in modified Julian date.

thetandarray, shape (…)

Colatitude in degrees.

phindarray, shape (…)

Longitude in degrees.

Returns:

zetandarray, shape (…)

Zenith angle in degrees \([0^\circ, 180^\circ]\) (angle between the local zenith and the center of the solar disc). Solar elevation angle is then computed by \(90^\circ - \theta_\mathrm{zenith}\).