The real-time system would have a database of the parameters of the antenna pointing model - things like azimuth axis tilt, axis perpendicularity, encoder centering, azimuth encoder zero offset, and, for each feed, the collimation offsets. It is a little unclear to me what of these need to be brought out to script level. It is clear that the collimation offsets need to be, and they are the only ones shown here. These script offsets are to be added to the ones from the internal database. If, as seems likely, the initial pointing model needs work, (eg having temperature dependent coefficients, or a higher order harmonic to describe bearing runout), I would incline to changing the internal database directly, rather than bringing the quantities out to the script for playing around purposes.
azcollimation = <collimation offset in arcminutes> elcollimation = <collimation offset in arcminutes> refractivity = <refractivity in N units> ! if refractivity is 0, calculate it from on-line weather instruments wrap = <R | L | N> ! If there is a choice of azimuth wrap, choose CW, CCW, Nearest, resp. reference = <NO | * | receivercode> ! Apply reference pointing collimation errors from named band ! (from current band if *)