camilla.compton@LIGO.ORG - posted 08:14, Thursday 09 March 2023 - last comment - 08:52, Thursday 09 March 2023(67869)
Ops Day Shift Start
TITLE: 03/09 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
CURRENT ENVIRONMENT:
SEI_ENV state: CALM
Wind: 7mph Gusts, 5mph 5min avg
Primary useism: 0.02 μm/s
Secondary useism: 0.29 μm/s
QUICK SUMMARY:
IFO has been unlocked with ALSY unlocked overnight. Elenna has issues with locked ALS yesterday -67868. We just had a lockloss there again, will investigate.
SUS, SEI, VAC, okay. LVEA6 and LAB2 Dust monitors frozen.
CDS: FEC48 (SEIH16 has got a red light on ADC since 6:38am (14:38UTC) tagging CDS
TJ and I tried manually going through the LOCKING_ALS steps and found that when we turned up the gain on the DIFF_PLL the X-arm looses lock. TJ found that the DIFF beatnote was low (-16dB) so touched the beamsplitter. we are now running through an initial alignment.