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<tt>Hi Rick-<br>
<br>
Antenna 21 was the one that had an edge panel blown off on the
morning of Oct 28 during the move from A to D config. Looks like
it was the edge above the quadrapod above the elevation yolk
adjacent to the stairs. This probably coincides with the
right-hand side of your plot?<br>
<br>
-George<br>
<br>
<br>
<br>
</tt><br>
<div class="moz-cite-prefix">On 7/9/20 11:58 AM, rperley via
evlatests wrote:<br>
</div>
<blockquote type="cite"
cite="mid:5e8e5ad3b5b3c15927d8861ba10a6c19@nrao.edu">I'm analyzing
the holography data, taken Jan 2019 and May 2020.
<br>
<br>
Something is quite wrong with the outer panels on ea21. Panels
6-1, 6-2, and 5-1 are seriously (centimeters!) away from their
proper position. The errors are far too large for Ka-band data to
give us the required answer, due to phase wraps.
<br>
<br>
As seen from the front (looking into the dish), 6-1 and 6-2 are
the first and second panels in the outer right, counting clockwise
from the top. 5-1 is the first panel in the next ring in,
counting from the top.
<br>
<br>
These errors are big enough that they ought to be visible to the
eye. Unfortunately, the antenna is now on E28, rather far out for
a casual visit. But if somebody is going out that way, it might
be good to look.
<br>
<br>
The attachment shows the color-coded panel displacements. Ignore
the large errors along the x- and y-axes -- these are due to the
quad leg shadows. The area of interest is in the area of x = 2
meters, y = 11 meters.
<br>
<br>
And if the misplaced panels are on the other side of the vertical
-- I really need to know that!!!
<br>
<br>
Rick<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
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