RotateNative2Celestial#
- class astropy.modeling.rotations.RotateNative2Celestial(lon, lat, lon_pole, **kwargs)[source]#
Bases:
_SkyRotation
Transform from Native to Celestial Spherical Coordinates.
- Parameters:
- lon
float
orQuantity
[:ref: ‘angle’] Celestial longitude of the fiducial point.
- lat
float
orQuantity
[:ref: ‘angle’] Celestial latitude of the fiducial point.
- lon_pole
float
orQuantity
[:ref: ‘angle’] Longitude of the celestial pole in the native system.
- lon
Notes
If
lon
,lat
andlon_pole
are numerical values they should be in units of deg. Inputs are angles on the native sphere. Outputs are angles on the celestial sphere.Attributes Summary
Input units.
Output units.
Methods Summary
__call__
(*inputs[, model_set_axis, ...])Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated.
evaluate
(phi_N, theta_N, lon, lat, lon_pole)Attributes Documentation
- input_units#
Input units.
- n_inputs = 2#
- n_outputs = 2#
- return_units#
Output units.
Methods Documentation
- __call__(*inputs, model_set_axis=None, with_bounding_box=False, fill_value=nan, equivalencies=None, inputs_map=None, **new_inputs)#
Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated.
- evaluate(phi_N, theta_N, lon, lat, lon_pole)[source]#
- Parameters:
- phi_N, theta_N
float
orQuantity
[:ref: ‘angle’] Angles in the Native coordinate system. it is assumed that numerical only inputs are in degrees. If float, assumed in degrees.
- lon, lat, lon_pole
float
orQuantity
[:ref: ‘angle’] Parameter values when the model was initialized. If float, assumed in degrees.
- phi_N, theta_N
- Returns:
- alpha_C, delta_C
float
orQuantity
[:ref: ‘angle’] Angles on the Celestial sphere. If float, in degrees.
- alpha_C, delta_C