nvector._core.great_circle_distance

great_circle_distance(n_EA_E, n_EB_E, radius=6371009.0)

Return great circle distance between positions A and B

Parameters:

n_EA_E, n_EB_E: 3 x n array

n-vector(s) [no unit] of position A and B, decomposed in E.

radius: real scalar

radius of sphere.

Formulae is given by equation (16) in Gade (2010) and is well conditioned for all angles.