[evlatests] R/L phase differences.
Rick Perley
rperley at nrao.edu
Thu Apr 23 17:56:06 EDT 2009
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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