[alma-config] simulation

[Leonia Kogan]

Dear Morita-san,

I have read your short memo about simulations including antenna pointing.
I'd like to make two comments:

1. I suppose that your simulation does not include mosaic. If it does then 
   skip this comment.
   You consider the case when the image(model) size is bigger than the primary 
   beam. Of cource the big effect of the antenna pointing error can be expected 
   at this case. 
   On the other hand if the image(model) size is bigger than the primary 
   beam than mosaic should be used. So this case is not practical for 
   the single pointing observation.

2. The synthesyzed beam given at figure 5 shows negative side lobes as big 
   as ~10%. This looks strange for me. I shown in my paper that negative side 
   lobes can not be more than 1/(N-1) for snapshot observation and for 
   natural weighting, where N is number of antennas. I think they should be 
   even less for non snapshot observation. 
   May be you do not use natural weighting?

Regards

Leonia Kogan