Pointing Model

To compensate for alignment errors, a pointing model has been implemented in the firmware.:

Δaz = c_an∙sin(az)∙tan(h) - c_ae∙cos(az)∙tan(h) - c_npae∙tan(h) + c_ca/cos(h) + c_aoff
Δh = c_an∙cos(az) - c_ae∙sin(az) + c_flex∙cos(h) + c_hoff

where az ist the azimuth and h is the elevation.

Source: <http://stella-archive.aip.de/javadoc/scs/stella/util/PointingModel.html>