seps

erfa.seps(al, ap, bl, bp)[source]

Angular separation between two sets of spherical coordinates.

Parameters:
aldouble array
apdouble array
bldouble array
bpdouble array
Returns:
c_retvaldouble array

Notes

Wraps ERFA function eraSeps. The ERFA documentation is:

- - - - - - - -
 e r a S e p s
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Angular separation between two sets of spherical coordinates.

Given:
   al     double       first longitude (radians)
   ap     double       first latitude (radians)
   bl     double       second longitude (radians)
   bp     double       second latitude (radians)

Returned (function value):
          double       angular separation (radians)

Called:
   eraS2c       spherical coordinates to unit vector
   eraSepp      angular separation between two p-vectors

This revision:  2021 May 11

Copyright (C) 2013-2023, NumFOCUS Foundation.
Derived, with permission, from the SOFA library.  See notes at end of file.