[evlatests] R/L phase differences.

[Bob Sault]

Rick, Barry,

Here is the plot and a text file with the data for
baseline 3-28 at 4385 MHz.

Best regards
Bob

--
---------------------------------------------------
Bob Sault is in Socorro until July 2009

Socorro Phone:   +1-575-8357239
Email:   rsault at unimelb.edu.au
Web:     http://astro.ph.unimelb.edu.au/~rsault 


> -----Original Message-----
> From: evlatests-bounces at donar.cv.nrao.edu [mailto:evlatests-bounces at donar.cv.nrao.edu] On Behalf Of
> Rick Perley
> Sent: Friday, 24 April 2009 7:56 AM
> To: Barry Clark
> Cc: evlatests at nrao.edu
> Subject: Re: [evlatests] R/L phase differences.
> 
> Bob's plot doesn't show the antennas, but the HA was +2 to +3, and dec =
> +74.
> 
> The 7 antennas utilized were at:
> 
> 24   W32
> 21   E32
> 2   E20
> 3   E16
> 28   N8
> 9   E24
> 15   W24
> 
>     If Bob sends me the relevant antenna pair, I can read off the (u,v,w).
>     It might be useful to plot 3 x 28 -- the shortest baseline ...
> 
> 
> Barry Clark wrote:
> > Bob's plot is not incompatible with delay cogging.  Delay moves
> > in steps of 0.625 ns or about 6 degrees.  What was the baseline
> > and hour angle?  Typical B config gaselines are of order 20
> > microsecs, so a delay step should occur a couple of times a
> > second, depending on baseline and HA.  This scatter is much
> > smaller than what the scatter diagram on V appeared to show.
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