[evlatests] mosaicking

Walter Brisken wbrisken at nrao.edu
Fri Apr 13 12:12:09 EDT 2007


To make this work I had to add 10 seconds duration to the first raster 
scan.  For 30 second dwell times, the _VLA_ wants to spend 40 seconds on 
the first pointing and 30 on the remaining.  The EVLA antenans now emulate 
this behavior.

-W

On Fri, 13 Apr 2007, Gustaaf van Moorsel wrote:

> The C-band mosaicking test last night was successful - gains on
> antennas 13, 14, 18, and 24, while moving away from the calibr-
> ator in incremental steps, show the same trend as VLA antennas.
> Antennas 16 and 26, though equipped with C band receivers, did
> not fringe, just like yesterday.  Results of VPLOT now are almost
> indistinguishable between VLA - VLA, EVLA - VLA, and EVLA - EVLA
> baselines, thanks to Walter's latest fix.
>
> The only slight worry is antenna 17 which did not seem to move
> quite the same as the others did.  See me for the VPLOT results.
>
> All in all, I think the system is ready for Dan Marrone's exper-
> iment in spite of my slight misgivings about antenna 17.  As an
> aside, what are the prospects for getting antennas 16 and 26 back
> in C-band?
>
> Gustaaf
>
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