[alma-config] Pad 168

[Alwyn Wootten]

Hi Mark

I'm back...waiting in the airport for my wife.  Eduardo gave me a report
from the draftsman which gave the position.  I think I checked it against
either Canio's spreadsheet or against one of the site drawings and it
agreed.  I'm not sure I checked it with the Y+ doc.

It'll need to be moved anyway for the new exercise; I just wanted to make
sure the mask is correct.

Clear skies,
Al

On Fri, March 25, 2005 12:26 pm, Mark Holdaway said:
> Al,
>
> I can't find John's pad document, but I suspect that it will indicate a
> position for
> pad 168 more like  E626.182  N7.451.516  (ie, did you get this position
> ONLY from
> the Y+ document?).
>
> Looking through my old work, I find the above coordinates for pad 168 in
> documentation John
> sent in in December 2002.  Station 168 was indeed chosen to be one of 16
> Conway pads which
> were to be included in the Y+ array, and as such it was "required" by
> the software to remain
> fixed, while 44 other pads were able to move about in the optimization.
> Apparently,
> an error was made.  The position you quote below, which is indeed in my
> array configuration files,
> is not even in my mask.  The position I quote above is to be found in
> John's mask, and it
> must be well within the boundaries of the science preserve.
>
> So, I don't think there is any problem with John's work, and I can't say
> at this point where in
> my process the error occurred, but I will say that I will be on the
> lookout for this this sort of
> problem in round 2 of the configuration work.
>
>    -Mark
>
>
> Alwyn Wootten wrote:
>
>>Folks,
>>
>>I've been talking to Eduardo Donoso and Jorg Eschwey about coordinate
>>systems to use for pad location on the site.  We'll finish that
>> discussion
>>this afternoon.  Incidental to that, Eduardo informs me that in the
>>current configuration plan, pad 168 at N7.451.458 E621.145 actually lies
>>slightly outside the boundaries of the preserve.  We need to move it
>>slightly north to get it back into the preserve.  This is one of the 16
>>'Conway' pads which are used in the Y+ configuration.  This suggests to
>> me
>>that there may be a mask error in the vicinity of this coordinate which
>>should be changed in the new configuration exercise.
>>
>>Clear skies,
>>Al
>>
>>
>>_______________________________________________
>>Alma-config mailing list
>>Alma-config at listmgr.cv.nrao.edu
>>http://listmgr.cv.nrao.edu/mailman/listinfo/alma-config
>>
>>
>>
>
> _______________________________________________
> Alma-config mailing list
> Alma-config at listmgr.cv.nrao.edu
> http://listmgr.cv.nrao.edu/mailman/listinfo/alma-config
>