From: paul harding
Subject: Re: 2.5m obslog 20091101 (MJD 55137)
Date: Mon, 2 Nov 2009 10:07:13 -0500
>
> Cart 7, plate 3074A
> activePlugging=7,3074,A,55137,1,344.3660,20.6769,0,5.0
> Could not see stars on GTF. Used twice bigger dec offset 0.02 to find
> guider stars.
> We expected to see stars in fibers 1,3,5,7,9,11 but we saw
> star in fiber 10 instead  of fiber 11.  Seeing ~1.3-1.5".
> 02:36 started science exposure.  T02:35:58.900
> No broken fibers
>
Stars in appearing in guide fibers belonging to the wrong pointing
convey no information,
it is just a random alignment. The guide fibers for the unused
pointing should not have been enabled,
and not used for guiding.
I suggest that when a plate has multiple pointings, guide fibers from
the non current pointing NOT be shown
on the decimated guider image.
All guide fibers are visible in the original undecimated guide fiber
image (guide fiber output block format) can be used for diagnostics if
necessary
Paul