[daip] STUFFR

[Eric Greisen]

Andy Biggs writes:
 > Hi Eric. Thanks for having a look at those editing tasks for me. I'll have 
 > another look when I get time to see if I can get EDITR to do the wrong 
 > thing again with regard to antenna-based editing.
 > 
 > I have a query about STUFFR and how it copes with data from not quite 
 > identical VLA arrays. The explain file says 'The input files must be 
 > single-source files having the same antennas'. Two of my files have, for 
 > example, the same number of antennas on the same pads, but one pad has a 
 > different antenna number in each. Due to array re-configuration I also 
 > have the same antenna number appearing on different pads. Is this going to 
 > cause problems? The map made from the STUFFR data doesn't look too bad, 
 > but I thought I'd better check.

YES IT MATTERS.

In STUFFR the data are time averaged by UBAVG.  It averages baselines
by baseline number, e.g. 1-2 is averaged with 1-2 even if those two
baselines have nothing to do with each other.  So your data were badly
averaged and your image suspect.

There is a task called MATCH which should be used to re-number the
antennas in one data set to match the antennas in the other.

Eric Greisen