[evla-sw-discuss] [Fwd: EVLA script problems]

[Pat Van Buskirk]

-------- Original Message --------
Subject: EVLA script problems
Date: Mon, 24 Apr 2006 22:31:36 -0600
From: Tom <tbriscoe at aoc.nrao.edu>
To: pvanbusk at banshee.vla.nrao.edu, bclark at nrao.edu, bbutler at nrao.edu, 
      observe at banshee.vla.nrao.edu, Tom <tbriscoe at aoc.nrao.edu>

Hi..

I want to report what problem I had tonight and what I did about it.

Vivek Dhawan wanted me to include the EVLA antennas in the observation
for AA303, since it was a long file with no frequency changes.  I
started the script on Eva in the usual fashion.  Immediately the script
started skipping over sources (printing each one on the console log).
Once it got through all the sources it displayed the usual file end
messages and quit.  An attempt to start it again had the same result.

I looked at the LST date in the VLA .obs file and it was the current
date (60,569).  However, apparently obs2script was converting dates to
*yesterday's* MJD (53849, not 53850).

I talked to Barry Clark and he pointed this out.  When he saw that the
LST date was correct for the .obs file, he suggested that I try changing
the LST start time of the .obs file to one hour later and try it again.
  Rather than just try running it again, I used obs2script manually to
convert the file so I could look at the output.  Unfortunately, after
the change it was converting dates to *tomorrow's* MJD (53851).  So I
went back to the original .obs file and set the start time *back* one
hour (from 07 00 00 to 06 00 00).  When I converted this file with
obs2script all of the MJDs came out correct (53850), so I started this
script running and it seemed to go to the correct source and worked fine
from that point on.

I don't understand exactly what the problem was but Barry can explain
that.  It's working now.


-- 
Throw your heart over the fence and the rest will follow.
Norman Vincent Peale