[evlatests] [Fwd: Problems with EVLA planetary observing]
Bryan Butler
bbutler at nrao.edu
Tue Oct 30 03:00:39 EDT 2007
barry - any idea what's going on here? this is all "old-style"
tracking, where the executor does all the calculations...
-bryan
-------- Original Message --------
Subject: Problems with EVLA planetary observing
Date: Mon, 29 Oct 2007 23:41:00 -0600
From: VLA Operations <observe at nrao.edu>
Organization: National Radio Astronomy Observatory - VLA
To: Bryan Butler <bbutler at nrao.edu>, Ken Sowinski <ksowinsk at nrao.edu>,
Pat Van Buskirk <pvanbusk at nrao.edu>
Hi..
I wrote this up in Mainsaver and I left a message for Bryan on his cell
phone, but I wanted to write more about it.
It looks like every time a source is encountered with a PM card in it,
the Executor causes all of the antennas to be pointed to 89-90 degrees
elevation and gives them all very large positive or negative azimuth
values. Needless to say, they never get on source. When a
non-planetary source is encountered, the values are all correct.
I noticed that when it was on URANUS that the OBSERVATION DATA panel in
the operator screen showed the RA and Dec for URANUS to be 00:00:00 and
00.0000. That can't be right.
I hope this helps.
Tom Briscoe
VLA Operations
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