aLIGO LHO Logbook

LHO General

corey.gray@LIGO.ORG - posted 07:38, Friday 21 June 2024 - last comment - 09:01, Friday 21 June 2024(78565)

Fri Ops Day Transition

TITLE: 06/21 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Lock Acquisition
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 5mph Gusts, 4mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY:

H1 lost lock an hour ago (after an almost 15hr lock), and has had no luck locking, so immediately starting an Intial Alignment (this is the norm as of late for the last ~month).

Arrived to DustMon alarm in the Labs (but it had already passed. Winds are calm. Looks like the seismic DMT viewer on nuc5 is really dead or quiet. nuc33 also doesn't have the SQZ DTT (seems to also have been happening a bit lately).

Comments related to this report

jonathan.hanks@LIGO.ORG - 09:01, Friday 21 June 2024 (78569)

Link

I took a look at the dmtviewer problem that Corey found.  The dmt is not producing data for those channels.  The dmt process is running, but just giving us a single 0 for the data points.  I've contacted the DMT group, it is probably just a restart of a process.  This does not appear to be impacting the SenseMon output (range plots), the DARM display, or h(t) generation.