[alma-config] Near-in sidelobes

Leonia Kogan lkogan at aoc.nrao.edu
Thu Jun 8 13:46:31 EDT 2000


John,

You wrote:

> Oops something is wrong there - even my spiral of a year ago 
>had a circularly symmetric uv coverage - what  declination 
>did you use for the simulation, maybe you mistyped +23 instead
>of 23. 

I used a wrong declination of the source in UVCON that I forgot to change from 
my previous VLA testing.

My new test shows circular symmety. You are right. I am sorry.
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The synthesize beam has a circular shape at the levels of >15%.

The synthesize beam has a hexagon shape at the level of 5-10%

The hexagon shape is related probably with the three tail spiral.

Leonia



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