Reports until 16:30, Tuesday 02 September 2025
LHO General (SQZ)
thomas.shaffer@LIGO.ORG - posted 16:30, Tuesday 02 September 2025 (86691)
Ops Day Shift End

TITLE: 09/02 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 149Mpc
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY: A fair amount of work done even though it was looking to be a slower maintenance day. We managed to stay locked for a few hours into it, while staying in light maintenance mode. We relocked automatically with an initial alignment, then lost lock 39 seconds later from an ETMX glitch. On the way up the second time, Elenna opportunistically tuned up PRMI ASC since it has shown some signs of non-convergence (alog86694). We have now been locked for 2.5 hours while a small dropout when the SQZr unlocked.
LOG:

Start Time System Name Location Lazer_Haz Task Time End
15:30 CDS Fil, Erik EX n HWWD cable 16:10
15:31 FAC Erik Ends n Chiller alarms 16:03
15:34 FAC Kim, Nelly mids, ends n Mats 15:35
15:34 FAC Randy CS n Forklift from VPW to LSB 16:28
15:35 FAC Tyler vertex n Fire hydrant 15:36
15:35 VAC Norco CP7 (EY) n LN2 delivery 16:54
15:36 VAC Travis MX n Pump work 20:03
15:37 FAC Tyler LVEA n Yellow tape 15:38
15:37 FAC Someone Staging n Rock moving 19:35
15:38 FAC - site n Fire pumps running 19:33
15:43 SQZ Sheila CR n SQZ meas. 16:34
15:55 VAC Janos MX n Joining Travis for pump work 20:03
15:56 SEI Jim EX, EY n Wind fence inspection 17:53
15:58 FAC Kim, Nelly LVEA n Tech clean 17:04
16:12 CDS Fil LVEA n SUS56 racks and near HAM3 racks, cable and chassis prep 17:16
16:15 FAC Randy, Tyler OSB rec., LVEA n Forklift into OSB receiving and then moving into LVEA (craning?) 16:33
16:27 VAC Gerardo, Jordan, Anna LVEA n Taking measurements near HAM6 (Jordan, Anna out 1659) 17:17
16:34 FAC Chris LVEA, Y arm, X arm n Pest control escort 17:52
16:37 PCAL Rick, Tony PCAL lab local PCAL lab meas. 20:23
16:42 ISC Daniel LVEA n AS_C whitening cable 18:32
16:53 PSL Jason CR n Ref cav remote alignment 17:11
17:01 - Richard LVEA n LVEA check 17:26
17:05 FAC Kim, Nelly EY, EX n Tech clean 18:24
17:21 PEM Robert LVEA n Shaker setup 19:35
17:32 CDS Marc MY, EY n Checking on power supplies 18:05
17:51 SYS Betsy LVEA n Grabbing dog clamps 18:08
17:53 FAC Chris LVEA n FAMIS checks 18:26
18:08 SYS Betsy Opt Lab - Parts 18:38
18:24 FAC Kim, Nelly FCES n Tech clean 18:50
18:27 FAC Chris Ends, Mids n FAMIS checks 18:54
18:35 SQZ Camilla, Fil LVEA - SQZT7 LOCAL Noise hunt 19:05
18:42 SYS Mitchell LVEA - W n Parts hunt 18:53
18:47 - Matt LVEA n Sweep 19:05
18:56 VAC Gerardo, Jordan MY n Parts hunt 19:35
19:46 PEM Robert LVEA n Wrapping up 20:03
21:38 PCAL Francisco PCAL lab - Packing up to ship out 22:33
22:12 SYS Betsy Opt Lab n Parts 22:40
22:51 ISC Camilla Opt Lab n Parts hunt 23:17