Reports until 16:32, Tuesday 11 August 2026
H1 General
ryan.crouch@LIGO.ORG - posted 16:32, Tuesday 11 August 2026 (91479)
OPS Tuesday day shift summary

TITLE: 08/11 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: GV8 was opened and closed today for Xarm alignment commissioning, ZM4 PSAMs adjustment was finished up. We had a small power glitch in the afternoon that tripped off the end station HEPIs.
LOG:                            

Start Time System Name Location Lazer_Haz Task Time End
14:33 FAC Kim LVEA Y' Tech clean 15:11
14:59 FAC Chris LVEA Y FAMIS checks 15:26
15:26 FAC Chris All Out BLDs N FAMIS checks around site 17:44
16:09 SEI Carlos LVEA Y Seismometer checks 16:55
16:16 SEI Jim LVEA Y SPI checks 16:28
16:37 OPS RyanC LVEA Y -> N LASER hazard transition, hazard to safe 16:47
16:48 EE Fil LVEA N Check JAC shutter connections 16:52
16:48 EPO Jenne LVEA N Tour 17:30
16:52 EPO Camilla LVEA N Tour 17:25
16:54 SQZ Rahul, RyanS LVEA Y/N HAM7 work, bifurcated laser hazard area 18:15
17:21 EPO Corey LVEA N Tour, in @ 12:00 17:34
17:46 OPS RyanC LVEA N -> Y Laser hazard transition, safe bifurcated to hazard 17:58
17:48 VAC Gerardo, Travis LVEA YES Opening GV8 (XARM) 18:13
18:07 PEM Michael, Shoshana, Huyen LVEA Y NRS hardware under ITMY, Huyen out 18:21 19:45
18:22 ALS Jennie, Masayuki LVEA Y ISCT1 table checks 18:45
18:29 SEI Jim CER Y Quick check SPI, CER maybe LVEA 18:32
19:12 ALS Sheila, Masayuki LVEA Y ISCT1 alignment checks 19:26
19:15 ISC Betsy LVEA Y Checks 19:22
19:29 CDS Dave CER Y Accelerometer checks 00:28
19:43 CDS/SAF Patrick MSR N Beckhoff safety computer investigation 20:03
20:01 FAC Randy LVEA Y Clean room checks 20:58
20:02 EE Fil, Jackie EndX N Reset VFD and remove analog cameras 21:07
20:02 SEI Jim EndX N Reset VFD recover HEPI 20:33
20:03 SQZ RyanS LVEA Y Beam profiles at HAM7 21:50
20:23 SQZ Rahul LVEA Y HAM7 work, ZM4 21:23
20:59 FAC Randy EndY then X N Clean room checks 21:59
21:08 EE Fil, Jackie EndY N Remove analog cameras 21:39
21:25 ALS Sheila, Camilla LVEA Y ISCT1 beatnote adjustment 22:01
21:21 SEI Jim, Huyen FCES N CPS checks/tests 21:45
21:37 SAF Richard Mechanical N HEPI pump checks 21:50
21:39 EE Fil, Jackie CER Y Remove analog camera electronics 23:21
22:11 PEM Shoshana, Huyen LVEA Y CRS laser 22:24
22:19 ISC Sheila, Masayuki LVEA Y ISCT1 alignment checks 23:00
22:58 SEI Michael, Jim LVEA Y Wiggle SPI cable, look at other cabling at TCS rack 23:58
23:10 VAC Gerardo LVEA Y Close GV8 00:28
23:22 EE Fil, Jackie MSR N Remove analog camera electronics 00:22

The gate phone microphone doesn't seem to be working well, one instance I heard nothing after answering, the next was garbled and full of static.

Images attached to this report