objectType SpaceFrame

extends CoordFrame

A SpaceFrame is specified by its reference frame (orientation), and a reference position (origin). Currently only standard reference frames are allowed. An equinox MUST be provided for pre-ICRS reference frames. A planetary ephemeris MAY be provided if relevant. If needed, but not provided, it is assumed to be 'DE405'.

classDiagram

        class SpaceFrame{
        coords:RefLocation refPosition
ivoa:string spaceRefFrame
coords:Epoch equinox
ivoa:string planetaryEphem

        }
        SpaceFrame --|> CoordFrame

link CoordFrame "../CoordFrame"

Members

name	type	mult	description
refPosition	RefLocation		The spatial location at which the coordinates are considered to have been determined. This model supports locations provided as either a standard reference position (e.g. GEOCENTER), or a coordinate specifying a custom location (e.g. long, lat, height ).
spaceRefFrame	ivoa:string		The spatial reference frame. Values MUST be selected from the controlled vocabulary at the given URL.
equinox	Epoch	optional	Reference date for the frame, required for pre-ICRS reference frames.
planetaryEphem	ivoa:string	optional	Ephemeris file for solar system objects SHOULD be specified whenever relevant.