MDM Trouble Report for 2007 Jun 30

Telescope: 2.4m
Observer(s): John Thorstensen (Dartmouth)
Instrument: Modspec + echelle CCD; retrocam

Problem(s) Encountered:
I used the retrocam to look for an eclipse in one of my objects
(didn't find it, unfortunately).  It worked well, but there's a
sizeable area in the upper right quadrant (as viewed with the
default ds9 params) that appears to have some kind of crud on
it, possibly ice from the looks of it.  This didn't affect my
differential photometry.  Interested parties may examine
affected images on agung at /lhome/obs24m/thor/jun07/retrocam.

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Submitted on 2007 Jul 1 [5:08:08]