[alma-config]distance to pipeline

[Bryan Butler]

thanks for looking into this, eduardo.

this is good information, but begs the question:
how close do _we_ want to get to the pipeline?

i would guess not closer than 50 meters, because we may need at
least that much for foundation + access around the antennas (including
the 7.5 meters protection band on each side).  100 meters is safer
still.  but, we want to get as close as we dare to, because having
that extra slop in the configuration design can really help (recall
that all the designs push up against the pipeline boundary)...

who will make this decision?


	-bryan


On 2002.05.13 13:44 Eduardo Hardy wrote:
> The written agreement between NRAO and GasAtacama does not specify per
> se a buffer zone but is designed so that we could have a 400 to 500 m
> buffer, at our request. It simply specifies how much we and them have to
> move away from the original positions in order not to interfere with
> each other. The notion of a buffer appears in the minutes of the
> negotiations conducted in Santiago in February 1998.
> 
> In principle (but see below), and since we were the ones requesting for
> the buffer, I foresee no problem in getting closer to the pipeline, but
> respecting of course the Chilean legal protection band 15 m wide
> centered on the pipeline. I don't expect GasAtacama to object to this,
> but we need to inform them in advance which I would do as soon as we
> have a concrete proposal for the configuration. 
> 
> Please be aware that we might require a certain minimum distance to
> assure cathodic protection. 
> 
> I have requested our lawyers to take a second look at our agreement and
> advise me. I'm also requesting ESO (APEX) and the ASTE project to keep
> us informed of any exchanges with GasAtacama.
> 
> Eduardo
> 
> Simon Radford wrote:
> > 
> > Today I interviewed Peter Napier and Jeff Kingsley, who were both involved in the negotiations with GasAtacama. Both recall a buffer zone of something like 400 m, although neither recall if thats +- 200 m or +- 400 m. I am attempting to track down the
> > written agreement but had no luck today.
> > 
> > Simon
>