Single-baseline Interferometry

This functionality requires two dishes, with two sets of observations, where one dish tracks the pointing calibrator and the other performs a five-point or similar scan pattern. The dish roles are then swapped. The power beams are then fit to the cross-correlation visibility amplitudes of the moving dish in each set of observations and the pointing offsets derived.

A sample simulated five-point observation with two SKA dishes showing the on-sky offsets in cross-elevation and elevation is shown below.

The pointing offsets in cross-elevation and elevation for each dish in the interferometric array are calculated following the functionality diagram below