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Reports until 08:40, Sunday 07 June 2015
H1 General
corey.gray@LIGO.ORG - posted 08:40, Sunday 07 June 2015 (18950)
End of Shift Summary

Chatted with Will (LLO Operator) early in the shift.  He said he and Carl were working on getting L1 UP (& they did shortly after).

5:08 landscaper truck on site, and they seem to be driving noticeably slow around the site (a good thing!).

For the current lock segment, it's been odd in that the range started out nice at 62Mpc, but over the following hours it trended down and leveled off at 58Mpc.  I hand this segment over to Cheryl. 

NOTE:  Also talked with Sheila again.  If the odd 25.4Hz noise comes back she suggested going to lower power (for Operators that would mean going to Manual Mode ith the ISC_Lock Node, selecting "Increase Power" on the Guardian, and then taking the PSL rotation stage to 17W).

BS ISI Watchdog Trip

During this current segment, Ed noticed from home and emailed me about a RED ISI for the BS.  Turns out the Stage2 Watchdog for the BS ISI GS13 was tripped (so red blocks for Stage2 FF & ISO....BUT the BS is unique in that we don't use the ISO  for Stage2 anyway).  So we could do a RESET ALL and this shouldn't affect anything, but we (Cheryl & I) are deciding to do this after the segment ends.  [Thanks to HUGH for help over the phone...and Ed for keeping an eye remotely!]

Due to BS's unique configuration for the ISI, we can ride through a WD trip like this.  (but it's something which could go unnoticed unless you happen to be watching the OPS overview).  For other ISIs, if a WD trip happened on this stage, the ISO filters are in effect and they definitely would raise one's attention because things would definitely (most likely) swing around. 

So maybe we should have an audio alarm for this special case?  Or maybe we can NOT have the WD affect this path in some way....just a thought.

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