[alma-config] Antenna locations

[Min S. Yun]

Hi Simon,

The most up-to-date pad positions for the doubling-ring array is
given at 

http://www.aoc.nrao.edu/~myun/mma/config/e_array.htm

You have to look at the actual pad positions and include the offsets
to those -- the pad positions are simple offsets from the reference
coordinate given in that page.  You can guess what that offset is
from the plot of the pads superposed on the mask -- the unit of the
grid is in 10 km/s, which is the pixel size on the mask. Just to 
repeat what I said at the telecon, trying to track down every pad
position might not be worthwhile, but it would be useful to see
if any quebrada runs thru this 200m diameter circle (and how much
we have to move the whole array to what direction, by how much,
to get around this problem).


					-- Min


On Mon, 4 Dec 2000, Simon Radford wrote:

> 
> Min, John,
> 
> Next week, Bryan Butler, Angel Otarola, and I will be working at
> Chajnantor. Our primary task is to repair and upgrade some of the
> instruments. With luck, though, we'll have time to survey some of the
> prospective antenna locations. 
> 
> Please, then, send me your current list of antenna positions. Please
> indicate any positions of particular concern. Off the top of my head, I
> imagine these might be the positions of the compact (<~ 500 m)
> configurations, antennae near geographic features, or critical antenna
> positions that would be difficult to move without affecting the entire
> configuration.
> 
> Since we leave this weekend, please send me this information by
> Thursday.
> 
> Thanks,
> 
> Simon
>