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Reports until 16:09, Thursday 02 May 2024
H1 General (SEI)
ryan.crouch@LIGO.ORG - posted 16:09, Thursday 02 May 2024 (77573)
OPS Thursday day shift end

TITLE: 05/02 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 159Mpc
INCOMING OPERATOR: Oli
SHIFT SUMMARY: Robert replaced all the view-ports, so the LVEA is ready to be transitioned back to SAFE whenever. We broke back into the 160s today, we briefly hit 161.8 Mpcs. Johnson Controls finished and headed out around 21:10UTC.

Lock#1

17:52UTC Lost lock right before 11.5 hours, possibly from a jack being used in the optics/pcal lab

Lock#2

No good flashes, went through CHECK_MICH. PRMI then locked pretty low but ASC was able to fix it

18:18 UTC VPW major dust alarm, 0 to 80k in a few seconds. It came down after 10-15 minutes

18:21UTC Lost lock after turning on BS_STAGE2 too early, from the alignment not being that great? The next attempt I held us in engage_drmi_asc for a few minutes before continuing.

4 SDF diffs I accepted, relating to SCRL FF and Y2LI accepted SDF diffs for Sheilas SCRL FF gain and Y2L measurements

21:49 UTC lockloss

Lock#3

We struggled to get past ENGAGE_DRMI_ASC, the BS was getting kicked (glitches?) mostly seen by the ST1 L4Cs and T240s

Relocking at MAX_POWER right now

LOG:                                                                                                                                                                                                                            

Start Time System Name Location Lazer_Haz Task Time End
15:11 SAF LASER HAZARD LVEA YES LVEA is LASER HAZARD 19:03
16:00 pem Robert EndY N Turn on an amplifier 16:13
16:01 LSC Sheila CR N SRCL FF, Y2L 17:21
16:22 VAC Jordan MidY N CP3 pump 16:56
16:23 FAC Kim H2 N Tech clean 16:33
17:00 CAL Rick, Francisco PCAL lab LOCAL PCAL work 21:07
16:39 SQZ Terry Optics lab Local SQZ work 18:14
16:40 PEM Robert EndY then X N Move amplifier 17:29
16:43 CAL Rick LVEA Y Parts search 16:59
17:03 SQZ Kar Meng Optics lab N SQZ work 18:14
17:20 CAL Tony CER, PCAL lab N/local Grab a laptop then PCAL work 21:07
17:48   Betsy LVEA Y Checks 18:03
18:05 PEM Robert LVEA Y Put viewports back on 18:25
20:23 SQZ Terry Optics lab LOCAL SQZ work 22:51
20:47 SQZ Kar Meng Optics lab LOCAL SQZ work 23:21
21:15 SQZ Camilla Optics lab LOCAL Join SQZ crew 23:05
22:02 CAL Tony, Francisco PCAL lab LOCAL PCAL work 23:02
22:06 CAL Rick PCAL lab LOCAL PCAL work 23:06
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