aLIGO LHO Logbook

H1 General

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cheryl.vorvick@LIGO.ORG - posted 07:57, Sunday 30 October 2016 - last comment - 12:19, Sunday 30 October 2016(31008)

Ops Owl Summary:

State of H1: relocking

Shift Details / Activites:

lock loss due to earthquakes in Italy
used the LARGE EQ state for SEI that JimW reccommended - no platforms tripped
after EQs rand down, Initial Alignment
first lock that made it to DC READOUT, paused for roll mode damping, my bad click broke lock
second lock that made it to DC READOUT, paused for damping, then went to Nominal Low Noise
set TCSY to 0.4W, and left TCSX at 0.2W
noticed range dropping fast, thought it might be TCS, turned TCSY off (0W) at 13:47UTC
went to make some lunch, and did not see the notification of a PI mode ringing up when I came back, can we make it repeat, like the GRBs?
PI mode 27 broke the lock

Notifications:

GRB came in while 9:51:19, while H1 was in DRMI

Comments related to this report

terra.hardwick@LIGO.ORG - 12:19, Sunday 30 October 2016 (31013)

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I would advise against making the PI vocal notification repeat; this would probably increase the stress level while attempting to damp a mode and in general we want to keep notification noise to a minimum. Remember that these notifications are kept logged right on the screen, so missed notifications (and the PI StripTool screen) can be checked quickly for status updates.