TITLE: 11/11 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Lock Acquisition
INCOMING OPERATOR: Austin
SHIFT SUMMARY:
Earthquake mode activated twice today for 3 differnt 5.0 Mag earthquakes out of Iceland and haiti.
18:40 UTC Dropped out of comissioning during an Earthquake, the SQZ manager fell out of nominal state.
With the Following message in the SQZ_MANAGER LOG:
2023-11-10_18:40:38.829674Z SQZ_MANAGER [FREQ_DEP_SQZ.run] Unstalling SQZ_FC
2023-11-10_18:40:38.834696Z SQZ_MANAGER [FREQ_DEP_SQZ.run] FC-IR UNLOCKED!
2023-11-10_18:40:38.895063Z SQZ_MANAGER JUMP target: SQZ_READY_IFO
Tagging SQZ
Back to observing at 18:47 UTC.
Dropped out of Observing at 19:06 for some commissioning while LLO is relocking.
Back to Observing at 19:37 UTC.
21:00 LVEA transitions to LASER HAZARD
21:09 UTC Dropped Out of Observing to do Commissioning at 21:09
Lost lock at 21:13 UTC due to Commissioning activies.
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=74141
Multiple earthquakes above 5.0 struck within a short period of time just after the lockloss.
21:42 UTC Starting Initial Alignment while earthquakes roll through.
22:09 Relocking started
Lockloss due to what looks to be ground motion on the peakmon channels. H1:ISI-GND_STS_CS_Z_EQ_PEAK_OUTMON
Robert comes back from the LVEA to tell us that HAM1 is making a strange sound. Like a picomotor is stuck on.
Robert and a few others go back into the LVEA, Called me back from the LVEA while standing next to HAM1. I could hear the noise over the phone. Robert says HEPI is singing at about 1000hz. Gerardo Asks me to make sure no one is running an excitation.I then Kill all test points. from the CDS Overview screen button.
Camilla Found a channel where the she could see excess noise from HAM1.
Robert has found what he believes to be the source of the noise. Seems like it's the Hepi pump. Robert has damped it using foam.
Tagging SEI
See Camilla's alog:
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=74140
LVEA is still LASER HAZARD
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 16:55 | SEI | Michel | Mid X & Y | N | Searching for Feed through parts. | 17:27 |
| 17:51 | VAC | Travis, Janos, +2 | Mid Y | N | Tour of Mid Y to CIT Visitors | 18:51 |
| 19:06 | Chilled water system | Eric | Mid X | N | working Chilled water system | 19:23 |
| 19:07 | PEM | Robert | LVEA | Y | getting ready to do some PEM Tests. | 19:39 |
| 19:08 | OPS | Ryan C | LVEA | Y | LASER HAZARD Transistion | 19:33 |
| 21:11 | PEM | Robert | LVEA | Yes | PEM MEasurements | 21:39 |
| 21:15 | TCS | Camilla | CTRL RM | N | Making TCS Changes | 21:25 |
| 21:26 | PEM | Robert | EndX | N | Getting shaker | 21:56 |
| 22:05 | PEM | Robert | LVEA | YES | Setting up more measurements. + Checking on Shaker and Hepi sound | 00:05 |
| 22:06 | VAC | Gerardo, + 3 | LVEA | YES | LVEA tour | 22:06 |
| 22:18 | VAC | Jordan +4 | FTCE + Overpass | N | CIT Tour | 22:48 |
| 22:25 | VAC | Gerado + Mitch | LVEA | YES | Vaccum Prep work | 22:55 |
| 23:15 | CDS | Jonathan | MidY | N | Looking at a switch configuration | 23:34 |