Subject: Re: [sloan-25mlog 3461] 2.5m obslog 20170413 (SJD 57857)
From: John Downey
Date: Fri, 14 Apr 2017 09:51:47 -0600
>=20
> Notes
> - Because of the low pressure in the sp2 dewar (17), the LN2 filling =
ended up
> being long and we could not take twilight data. Sky was partially =
cloudy though.
I've asked Tracy and Alex to change the pressure relief valves to =
another brand we are trying.=