ctapipe is not stable yet, so expect large and rapid changes to structure and functionality as we explore various design choices before the 1.0 release.

get_point_on_shower_axis#

ctapipe.coordinates.get_point_on_shower_axis(core_x, core_y, alt, az, telescope_position, distance)[source]#

Get a point on the shower axis in AltAz frame as seen by a telescope at the given position.

Parameters:
core_xu.Quantity[length]

Impact x-coordinate

core_yu.Quantity[length]

Impact y-coordinate

altu.Quantity[angle]

Altitude of primary

azu.Quantity[angle]

Azimuth of primary

telescope_positionGroundFrame

Telescope position

distanceu.Quantity[length]

Distance along the shower axis from the ground of the point returned.

Returns:
coordAltAz

The AltAz coordinate of a point on the shower axis at the given distance from the impact point.