7th NRAO Synthesis Imaging Summer School - June 2000	Prev
	Error Recognition - S.T. Myers	Page 20
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	16	Self-Calibration - Correcting Small Gain Errors:
This series of images shows a typical progression of deconvolution and self-calibration cycles on our 3C286 dataset. This data was processed in difmap. Above L-R: (1) Amplitude vs. UV radius; (2) Dirty Image; (3) Residual after single point model fit; (4) Residual after phase-only selfcal. Below L-R: (5) Residual after amp & phase selfcal; (6) Residual with 200 mas Gaussian model; (7) Residual with CLEAN model; (8) Visibility plot showing magnitude of phase errors we have been correcting (only a few degrees rms!).
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