obsgeo_to_frame¶

astropy.wcs.utils.
obsgeo_to_frame
(obsgeo, obstime)[source]¶ Convert a WCS obsgeo property into an
ITRS
coordinate frame. Parameters
 obsgeoarray_like
A shape
(6, )
array representingOBSGEO[XYZ], OBSGEO[BLH]
as returned byWCS.wcs.obsgeo
. obstimeastropy:timelike
The time associated with the coordinate, will be passed to
ITRS
as the obstime keyword.
 Returns
Notes
The obsgeo array as accessed on a
WCS
object is a length 6 numpy array where the first three elements are the coordinate in a cartesian representation and the second 3 are the coordinate in a spherical representation.This function priorities reading the cartesian coordinates, and will only read the spherical coordinates if the cartesian coordinates are either all zero or any of the cartesian coordinates are nonfinite.
In the case where both the spherical and cartesian coordinates have some nonfinite values the spherical coordinates will be returned with the nonfinite values included.