OrbitTracker

class simsit.tracker.OrbitTracker(*, orbit, observer, t0, rot_sky_pos0, mount='EQ', propagator=None)

Track a moving object by following its predicted sky position.

Parameters

orbitssapy.Orbit: Orbit to track.
observerssapy.EarthObserver: Observer location.
t0astropy.time.Time: Reference time for tracking.
rot_sky_pos0galsim.Angle: Camera rotation angle at the reference time.
mount{‘EQ’}, optional: Mount type. Only equatorial mounts are currently supported.
propagatorssapy.Propagator, optional: Propagator used to predict object motion.

Methods Summary

`get_boresight`(time)	Return the tracked object's apparent sky position.
`get_rot_sky_pos`(time)	Return the camera rotation angle.

Methods Documentation

get_boresight(time)

Return the tracked object’s apparent sky position.

galsim.CelestialCoord: Apparent right ascension and declination of the tracked object.

get_rot_sky_pos(time)

Return the camera rotation angle.

For the currently implemented equatorial-mount behavior, the camera rotation angle is held fixed.