Date: Tue, 28 Jan 2003 14:52:19 -0600 (CST)
From: Stephen Kent
Subject: Re: 2.5m obslog 20030126 (MJD 52666)
Mike,
I looked at the seeing plots for run 3610 (Stripe 61 N) and while there
is a short stretch of "yellow", I would judge this run as being
acceptable.  It's a tough call to know whether to call data as good or
bad - but we frequently have short stretches of bad seeing in long runs,
and in data processing we allow a variance for such stretches to avoid
creating holes that will never get filled later.  SoK does a lot of median
averaging when computing the seeing (to smooth out short-timescale
fluctuations) but looking at these plots, the algorithm looks like it is
overly aggressive at flagging marginal stretches bad.  If you are unsure
about some data, send me an email in the morning and I'll try to look at
the plots before the next night.
Steve