MechanicalModelHESS

class ctapointing.pointingmodel.MechanicalModelHESS(**kwargs: Any)

Bases: PointingModel

The HESS standard pointing model.

Attributes Summary

`amp_non_perp_alt`	amplitude of non-perpendicularity altitude axis
`amp_non_vert_az`	amplitude of non-verticality azimuth axis
`amp_se_alt`	amplitude of shaft encoder error altitude
`amp_se_az`	amplitude of shaft encoder error azimuth
`amp_sin_2az`	amplitude of sin(2az) effect
`bending_hor`	horizontal camera bending
`bending_vert`	vertical camera bending
`camera_offset_hor`	horizontal camera offset
`camera_offset_vert`	vertical camera offset
`camera_offset_vert_reverse`	vertical camera offset (reverse)
`const_camera_rot`	constant camera rotation
`const_focal_length`	constant focal length
`const_refraction`	constant refraction
`mix_sin_2az`	mixing angle of sin(2az) effect
`offset_se_az`	offset of shaft encoder azimuth
`parameters`
`phase_non_vert_az`	phase of non-verticality azimuth axis
`phase_se_alt`	phase of shaft encoder error altitude
`phase_se_az`	phase of shaft encoder error azimuth
`phase_sin_2az`	phase of sin(2az) effect

Methods Summary

get_corrected_pointing(nominal_pointing)

Calculates the corrected pointing for a (array-like) sky coordinate in the AltAz system.

Attributes Documentation

amp_non_perp_alt: amplitude of non-perpendicularity altitude axis

amp_non_vert_az: amplitude of non-verticality azimuth axis

amp_se_alt: amplitude of shaft encoder error altitude

amp_se_az: amplitude of shaft encoder error azimuth

amp_sin_2az: amplitude of sin(2az) effect

bending_hor: horizontal camera bending

bending_vert: vertical camera bending

camera_offset_hor: horizontal camera offset

camera_offset_vert: vertical camera offset

camera_offset_vert_reverse: vertical camera offset (reverse)

const_camera_rot: constant camera rotation

const_focal_length: constant focal length

const_refraction: constant refraction

mix_sin_2az: mixing angle of sin(2az) effect

offset_se_az: offset of shaft encoder azimuth

parameters = ['amp_se_az', 'phase_se_az', 'amp_se_alt', 'phase_se_alt', 'offset_se_az', 'amp_non_vert_az', 'phase_non_vert_az', 'camera_offset_vert', 'camera_offset_vert_reverse', 'camera_offset_hor', 'amp_non_perp_alt', 'bending_vert', 'bending_hor', 'const_refraction', 'amp_sin_2az', 'mix_sin_2az', 'phase_sin_2az', 'const_camera_rot', 'const_focal_length']

phase_non_vert_az: phase of non-verticality azimuth axis

phase_se_alt: phase of shaft encoder error altitude

phase_se_az: phase of shaft encoder error azimuth

phase_sin_2az: phase of sin(2az) effect

Methods Documentation

get_corrected_pointing(nominal_pointing)

Calculates the corrected pointing for a (array-like) sky coordinate in the AltAz system.

Implements the 19 parameters HESS mechanical pointing model.

Parameters:: nominal_pointing (SkyCoord) – Nominal pointing of the telescope.
Returns:: corrected_pointing – Corrected pointing of the telescope, according to the model predicition.
Return type:: SkyCoord

__init__(config=None, parent=None, **kwargs)

Parameters:

config (traitlets.loader.Config) – Configuration specified by config file or cmdline arguments. Used to set traitlet values.
parent (Tool or Component) – If a Component is created by another Component or Tool, you need to pass the creating Component as parent, e.g. parent=self. This makes sure the config is correctly handed down to the child components. Do not pass config in this case.
kwargs – Traitlets to be overridden. TraitError is raised if kwargs contains a key that does not correspond to a traitlet.

amp_non_perp_alt: amplitude of non-perpendicularity altitude axis

amp_non_vert_az: amplitude of non-verticality azimuth axis

amp_se_alt: amplitude of shaft encoder error altitude

amp_se_az: amplitude of shaft encoder error azimuth

amp_sin_2az: amplitude of sin(2az) effect

bending_hor: horizontal camera bending

bending_vert: vertical camera bending

camera_offset_hor: horizontal camera offset

camera_offset_vert: vertical camera offset

camera_offset_vert_reverse: vertical camera offset (reverse)

const_camera_rot: constant camera rotation

const_focal_length: constant focal length

const_refraction: constant refraction

get_corrected_pointing(nominal_pointing)

Calculates the corrected pointing for a (array-like) sky coordinate in the AltAz system.

Implements the 19 parameters HESS mechanical pointing model.

Parameters:: nominal_pointing (SkyCoord) – Nominal pointing of the telescope.
Returns:: corrected_pointing – Corrected pointing of the telescope, according to the model predicition.
Return type:: SkyCoord

mix_sin_2az: mixing angle of sin(2az) effect

offset_se_az: offset of shaft encoder azimuth

phase_non_vert_az: phase of non-verticality azimuth axis

phase_se_alt: phase of shaft encoder error altitude

phase_se_az: phase of shaft encoder error azimuth

phase_sin_2az: phase of sin(2az) effect