Date: Tue, 25 Jun 2013 11:44:46 -0400
Subject: Apogee pressure
From: Jcw6z@virginia.edu
I don't think the apogee pressure at 1e-6 is cause for any concern.  This
link shows a variety of telemetry:
www.astro.virginia.edu/apogee/telemetry.html
Historically we have been at 0.8-0.9 e-7 in the summer.  The APO
atmospheric pressure isn't abnormally high right now relative to summer
trends.  We have been running a little warmer (0.1-0.2 K internal dewar
temps) since the thermostat was installed in the apogee room and load from
Marvels removed.  Vacuum will also be affected by room temp.
Unless the Marvels room was open yesterday and thus the cause of
yesterdays rise, I suggest waiting until the bright run is done and then
lower the thermostat set point 1 degree.
Thanks, John