patrick.thomas@LIGO.ORG - posted 11:56, Saturday 01 July 2017 - last comment - 13:03, Saturday 01 July 2017(37265)
NLN, RF noise
Lost lock at 18:14 UTC. No obvious cause. No real issues reacquiring. Sitting at NLN and the attached are the DARM and RF45 spectrums. No SDF differences. No guardian notifications.
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Coherence attached.
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Range plot attached.
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On phone with Richard. Told me to try adjusting the range down and then back. 19:43 UTC Lost lock adjusting H1:LSC-MOD_RF45_AM_RFSET
20:02 UTC Currently sitting at down. RF9 and RF45 are back to their references. 20:04 UTC RF45 glitched and came back to reference. 20:07 UTC Starting attempt to relock. 20:13 UTC RF45 glitched during DRMI states. 20:19 UTC Lock loss from SWITCH_TO_QPDS. 20:26 UTC Lock loss from LOCK_DRMI_3F. 20:58 UTC Made it to NLN. RF appears better. 21:02 UTC Running a2l.