ReferencePlaneFrame

class twobody.ReferencePlaneFrame(*args, **kwargs)

Bases: BaseCoordinateFrame

A coordinate frame aligned with the reference plane coordinates of a Kepler orbit, centered on the barycenter or reference point of the orbit.

See Observer or reference plane coordinates for more information.

ReferencePlaneFrame objects always have generic component names for spherical coordinates of lon/lat, not the component names for the frame of the origin.

Parameters

representationBaseRepresentation or None

A representation object or None to have no data (or use the other keywords).

originSkyCoord or low-level coordinate object.

The coordinate which specifies the origin of this frame. This is typically a sky position and a distance to the barycenter or reference point of the orbit at a particular epoch.

Notes

ReferencePlaneFrame is a factory class. That is, the objects that it yields are not actually objects of class ReferencePlaneFrame. Instead, distinct classes are created on-the-fly for whatever the frame class is of origin.

Attributes Summary

default_differential
default_representation
frame_attributes
frame_specific_representation_info
name
origin

Attributes Documentation

default_differential

default_representation

frame_attributes = {'origin': <astropy.coordinates.attributes.CoordinateAttribute object>}

frame_specific_representation_info

name = 'referenceplaneframe'

origin = None