Calibration was done using dial indicators, C-clamps to hold things together, a DVM balanced on the backing structure struts, and binoculars to read the dial indicators when too far away to see unaided.
	There is a sinusoidal dependence caused by the changing gravity vector on the primary. The zenith angle lookup tables are CSO holography data fitted to a cosine curve.  Offset length to ZA curves were created for all 99 standoffs on the back of the dish.
	~ Melanie Leong ~