[daip] AIPS calib

[Eric Greisen]

Hans-Rainer Kloeckner writes:
 > Hi Eric,
 > 
 > 	Sorry for bothering you. Can you please enlighten me? Why, when  
 > using calib in self-calibration mode with a sub-set of images  
 > produced from different facets, one does not use the primary beam  
 > parameter to correct for the flux variation? Maybe I don't understand  
 > how calib solves for amplitudes but I always assumed that the input  
 > sources need to have the correct flux densities?
 > 

You are calibrating the data as observed - the telescope sees the sky
downweighted by the primary beam.  Therefore it should use that image
for self calibration, not something it did not in fact observe.

Eric Greisen