Reports until 14:56, Friday 27 January 2017
H1 SEI
hugh.radkins@LIGO.ORG - posted 14:56, Friday 27 January 2017 (33683)
LHO ISI In-Vacuum Seismometer Pod Pressures--They are okay

Scanned 60 days on these 117 signals.  All are within a few percent of nominal level and trends tend to inversely follow the temperature.

Working on a better less-painful way to monitor these so it can be FAMIS'd but not there yet.

Meanwhile, I'll attach them here but just for history/reference.  The HAM5 L4C P3 has a 25 unit step up in late May that remained until mid-December.  Can't explain this but it steps right back to where it was so I suspect it is not real pressure.

I'd say not much reason to look at them until some future trend looks concerning.

Images attached to this report