Systems and methods for automated telescope alignment and orientation
View Patent ↗A fully automated telescope system is operable in both alt-az and equatorial modes. In either configuration, the telescope system aligns and orients itself to the celestial coordinate system following a simplified initialization procedure during which the telescope tube is first pointed North and then pointed towards the horizon. A command processor, under application software control, orients the telescope system with respect to the celestial coordinate system given the initial directional inputs. The initial telescope orientation is refined by automatically inputting geographical location data and a timing parameter. A simplified tracking procedure allows tracking of celestial objects after the telescope system has had its axis positions initialized to a horizontal and a vertical index. Object tracking is subsequently performed with no additional orientation procedure required.
1. In a computerized telescope system of the type including a telescope coupled for rotation about two orthogonal altitude and azimuth axes, wherein the telescope includes
a pair of motors, each coupled to rotate the telescope about a respective one of the orthogonal axes, each motor including a motor control processor coupled to a positional reference indicator, each positional reference indicator defining an arcuate position of the telescope with respect to its respective axis, and
a central control processor connected to receive positional reference information from each motor control processor, a method for orienting the telescope for celestial object tracking comprising:
commanding the processor to move the telescope to a position such that it points to a location proximate to a celestial pole;
recording celestial pole positional reference data from the respective positional reference indicator as a first positional index;
commanding the processor to move the telescope from the pole position to a position substantially level and aimed at the horizon;
recording horizontal positional reference data from the respective positional reference indicator as a second positional index;
processing the first and second positional indices to calculate an approximate latitude of an observer;
slewing the telescope to a desired viewing object;
recording the displacement vectors of the telescope tube axes from the first and second positional indices; and
calculating an alt-az mount drive rate from the approximate latitude and the axial displacement vectors of the desired viewing object and subsequently tracking that object's movement through the sky with no further alignment manipulation of the telescope system by the user.