ska_sdp_wflow_pointing_offset.calibration.gt_solve module

Contains the following gain calibration (G-terms) functions:

  1. Solves for the complex un-normalised antenna gains (G-terms)

  2. Optionally calculates model visibility when fitting beams to the gain amplitudes

ska_sdp_wflow_pointing_offset.calibration.gt_solve.compute_gains(vis, source=None)[source]

Solves for the antenna gains for the parallel-hands only.

Parameters:

vis – The list of observed Visibility

Source:

Target SkyCoord

Returns:

GainTable containing solutions

ska_sdp_wflow_pointing_offset.calibration.gt_solve.extract_parallel_hand_gains(gaintable)[source]

Extracts the parallel-hands polarisation gain solutions

Parameters:

gaintable – The gain solutions for each scan with dimensions (time, antenna, frequency, receptor1, receptor2)

Returns:

Gain amplitudes and weights for each scan