NominalFrame¶

class ctapipe.coordinates.NominalFrame(*args, **kwargs)[source]¶

Bases: astropy.coordinates.baseframe.BaseCoordinateFrame

Nominal coordinate frame.

A Frame using a UnitSphericalRepresentation. This is basically the same as a HorizonCoordinate, but the origin is at an arbitray position in the sky. This is what astropy calls a SkyOffsetCoordinate

If the telescopes are in divergent pointing, this Frame can be used to transform to a common system.

Attributes

origin: SkyCoord[AltAz]: Origin of this frame as a HorizonCoordinate
obstime: Tiem: Observation time
location: EarthLocation: Location of the telescope

Attributes Summary

`default_differential`	Default representation for differential data (e.g., velocity)
`default_representation`	Default representation for position data
`frame_attributes`
`frame_specific_representation_info`	Mapping for frame-specific component names
`location`
`name`
`obstime`
`origin`

Attributes Documentation

default_differential¶: Default representation for differential data (e.g., velocity)

default_representation¶: Default representation for position data

frame_attributes = {'location': <astropy.coordinates.attributes.EarthLocationAttribute object>, 'obstime': <astropy.coordinates.attributes.TimeAttribute object>, 'origin': <astropy.coordinates.attributes.CoordinateAttribute object>}¶

frame_specific_representation_info¶: Mapping for frame-specific component names

location = None¶

name = 'nominalframe'¶

obstime = None¶

origin = None¶