From: Robert A. Knop Jr. (robert.a.knop@vanderbilt.edu)
Date: Tue Apr 16 2002 - 07:56:15 PDT
Last night was miserable. The only useful thing we did, I believe, was
get 2" seeing 2-minute exposures of the Subaru fields, which will
hopefully be useful for identifying brighter offset stars (even if it's
too late). We were only open for 2-3 hours; by midnight, it was
clearish most of the time, but the humidity was too high, so we were
closed. We gave up a bit afte r3:00, and looking at the humidity record
we didn't lose anything. Even when we were open, the seeing was
unusably bad.
However, this morning I woke up to clear blue skies overhead (whereas
yesterday I woke up to fog so thick I couldn't see the dome from the
dorm). The humidity monitor shows that the humidity plummeted after
sunrise this morning. There is hope for tonight... we have to hope that
it doesn't cool down too much so as to approach the dew point, and that
the clouds stay away... and that the seeing is reasonable. If so, we
might get 1/2 the depth we wanted on our deep fields, and a handful of
shallow fields to search. At that point, it may become plausible to use
year-old references to do a deep search using last year's references,
and then use tonight's data on lightcurves to decide of the supernovae
could be at or after max. (We will discuss that later. First we have
to see if tonight is any good.)
-Rob
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