[alma-config]Re: coordinates

[Angel Otarola]

Dear John,

We have received your set of 183 coordinates and we already asked to
include those coordinates in the cartography Raul Villanueva is producing
for us.
Boone, Webster and Conway data will be included in separate layers in the
Autocad database so that we can turn on/off any layers to make comparisons
when working with the digital file.


Cheers,
Angel



A 20:26 11/30/2001 +0100, John Conway escribió:
>
>
>Hi,
>
> Below I include 183 pad positions within 4km.
>-Simon, if  please acknowledge receipt.
>
>I agree with Angel that having the positions 
>of all the pads from the different strawmen marked
>on a maps - would be  really useful - my experience from
>April was that you need every aid to work 
>efficiently at that altitude.  I'm making 
>my own maps of my configuration but it 
>would be good to have a 'master map' with 
>all pads on. So Angel, could
>you add my coordinates to Villanueva 
>to put on the maps
>
>Having at least temporary stakes (with some
>kind of flag on top?) would be useful. Even 
>though we are not staking out final or 
>even near final positions- it will helps to 
>navigate around the site (also maybe someone could 
>bring some low power binoculars - again it 
>sounds like overkill - but anything you van have 
>to help you find your way back to the array
>centre and the stakes/flags there and elsewhere 
>the better).
>
>I think it will be good discipline to visit these
>defined pad locations - we can then 
>get some statistical information about how 
>many pads chosen on the basis of the mask, and
>how this varies with different ares over the site,
>- and also how far is the nearest 'best'
>place. Hopefully during this trip we can develop the 
>methodology we need to iterate on the final design once 
>the conceptual design is finalised at 
>the CDR in  January.
>
>My pad design includes a large outer 4km Reuleux
>triangle, with a zoom array inside-I'm not 
>wedded completely to this. The basic idea is that 
>with a 4km periphery populated array the gap
>in resolution to 14km is just over 3 (which 
>from VLA experience we know we can live with),
>plus there are some Y shaped hybrids going
>from 4km to 14km - with useful if
>not elegant uv coverage. Adrians concept 
>with two rings around Chascon and gradual 
>zooming is more elegant - I could adapt my design
>to that by extending two of the spiral arms.
>The only questions is which is harder terrain
>wise - a 4km triangle or Adrians cocept -this 
>for me is one of the questions I would like to 
>answer during this trip.
>
>
>  John
> 
>
> 
>
>Attachment Converted: "c:\app\eudoraangel\attach\chan61.pad"
>