[alma-config] [Fwd: Re: Memo 538 draft]

[Alwyn Wootten]

Folks,

A 50 element ALMA array will not enable the full Level 1 science 
requirements, but the Executives requested an analysis of this baseline, 
based on currently available funding.  Accordingly, the JAO asked the 
Science IPT for a design for a 50 antenna array which could provide 
excellent imaging along with the possibility of extension to 64 antennas.

John Conway has provided this design, which is described in a document 
located at the following location (userid and password necessary):
http://edm.alma.cl/forums/alma/dispatch.cgi/docapproval/docProfile/103106/d20050829201752/No/t103106.htm
or at:
http://www.oso.chalmers.se/~jconway/ALMA/OUT/ALMA-90.02.00.00-005-A.SPE.pdf

A separate document in preparation by M.Holdaway defines the positions 
and reconfiguration scheme for the approximately 35 additional pads 
which are needed for the outer configurations of ALMA.  This will be 
ready by year's end, after some iteration with environmentall concerned 
vizcachas and site road and network design.

Also, I'd like to draw your attention to a new ALMA Memo on the 
configuration for the compact array, No 538.  Currently it is on edm 
only but it will appear at www.alma.nrao.edu soon.

Your comments are invited on these documents.

Thanks,
Clear skies,
Al
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