From: Craig Loomis
Subject: Re: 2.5m obslog 20060106 (MJD 53742)
Date: Sat, 7 Jan 2006 12:40:09 -0500
   As for what made sos not reduce the plate, most of the plPlugMap
par files for the 1242-1249 batch (and only those for that batch)
have reddeningMed commented out. In case 1245 (or others) need more
time, what values should be given?
  - craig
> 04:25Z: cart 2, plt 1245 (orion). stars on goto field. But seeing is
>         extremely bad at the moment. SOS did not reduce arc
> exposure and
>         reports an error of "sdR-b1-00036362.fit: ABORT: Unable to
> reduce
>         this arc exposure (need flat)". We check and see the flat
> file
>         is on SOS disk. We then do sos-redo, SOS still refuse to
> reduce it
>         and report an error (see problem section). Then we take a post
>         calib, without any luck, SOS still does not reduce the
> data. For
>         this plate, we took one 900s science exposure, and one sky
>         exposure (RA shifted by -11.25", seeing is over 2.0"). Because
>         we have no idea what are going on here, plus this is
> priority-1
>         plate, we decided to switch to higher priority plate 2331
> which just
>         becomes available.  After we switched to plt 2331, things
> work fine.
>         Can some body,please look into the problem, give us
> feedback on whether
>         the exposures on this plate are any good?