chaosmagpy.coordinate_utils.basevectors_use

chaosmagpy.coordinate_utils.basevectors_use(theta, phi)

Computes the unit base vectors of the local USE frame (spherical components).

Parameters:

thetandarray, shape (…)

Geocentric colatitude in degrees (excluding the poles).

phindarray, shape (…)

Longitude in degrees.

Returns:

use_1, use_2, use_3ndarray, shape (…, 3)

USE unit base vectors resolved into the cartesian components of GEO.