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<tt>Here's some pics I sent to Bryan documenting the missing panel,
and the weather that caused it.<br>
<br>
Not quite clear it is at one of the 'cardinal' points on the edge.<br>
<br>
And it can't explain both of your bad edge panels in the
holography, of course!<br>
<br>
-George<br>
<br>
</tt>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Subject:
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<td>missing panel pics</td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Date: </th>
<td>Thu, 31 Oct 2019 09:24:42 -0600</td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">From: </th>
<td>George Moellenbrock <a class="moz-txt-link-rfc2396E" href="mailto:gmoellen@nrao.edu"><gmoellen@nrao.edu></a></td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">To: </th>
<td>Bryan Butler <a class="moz-txt-link-rfc2396E" href="mailto:bbutler@nrao.edu"><bbutler@nrao.edu></a></td>
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<br>
<br>
Hi Bryan-<br>
<br>
I attach some pics of the missing panel.<br>
<br>
missing_panel2.jpg is an early close-up (when I noticed the
missing panel; someone else had zoomed the camera)<br>
missing_panel3.jpg shows the panel lying near the center of the
dish to the left of the feed housing.<br>
missing_panel5.jpg shows the panel has slid to the edge of the
dish; at this point, Vivek and I called the operator to have the
antenna stowed and the panel retrieved<br>
<br>
BeforeAfter.gif toggles between UTC=150859 and 150910, which shows
when it actually happened: ~9:09am MDT. (Enlarged from web cam
photos I was capturing at a wide angle to observe the move into
D-array--alas frustrated by the wind.)<br>
<br>
WindPlot.png is the weather station wind plot which shows that the
wind reached it peak sustained level (~40mph, gusts to 50mph) at
the same time. Apparently, the whole array got a panel mount
integrity test for ~2 hours, at least for the WSW facing
edges.....<br>
<br>
NextDay.jpg shows the antenna observing with the absent panel.<br>
<br>
Chris and Ephraim have photos from the site guys from inside the
dish, showing some impact damage to another panel, and a view out
through the gap.<br>
<br>
-George<br>
<br>
<br>
<br>
<br>
<br>
<br>
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