Index
tilts ha, lat, el, [camera=?]
Calibrate the tilts of the telescope axes.
- Arguments:
-
Tilt ha
- The tilt of the azimuth axis along the direction of
increasing hour angle (degrees).
Tilt lat
- The tilt of the azimuth axis along the direction of
increasing latitude (degrees).
Tilt el
- The tilt of the elevation axis perpendicular to the azimuth
ring, measured clockwise around the direction of the azimuth
vector (degrees).
- Optional Arguments:
-
Camera number
- The number of the associated optical pointing camera. If
this is omitted, the pointing model of the currently
selected camera is configured.
- Examples:
- The following example says that the azimuth axis is tilted 3.5
degrees east, and 23 arcminutes north. It also says that the
elevation axis is tilted out of the plane of the azimuth by
-0.3 degrees.
tilts 3.5, 0:23, -0.3
- Context:
- The CBI Telescope axes can not be aligned to the sub-arcsecond
precision required by the CBI. The misalignment of each axis from
the ideal is represented as a tilt. Before the control system can
accurately track a source, you must call the tilts command to
tell it what these tilts are.
Martin Shepherd (9-Oct-1997)