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Reports until 10:25, Saturday 05 April 2025
LHO VE
david.barker@LIGO.ORG - posted 10:25, Saturday 05 April 2025 (83750)
Sat CP1 Fill

Sat Apr 05 10:05:42 2025 INFO: Fill completed in 5min 38secs

 

Images attached to this report
H1 CDS
david.barker@LIGO.ORG - posted 09:17, Saturday 05 April 2025 - last comment - 10:36, Saturday 05 April 2025(83747)
h1daqnds1 having issues serving data, please use h1daqnds0 for now while we work on this

Note that the web trends use nds0 and are updating.

Comments related to this report
david.barker@LIGO.ORG - 10:20, Saturday 05 April 2025 (83748)

FRS33784 ticket created for this issue.

david.barker@LIGO.ORG - 10:23, Saturday 05 April 2025 (83749)

Jonathan restarted rts-daqd on h1daqnds1 at 09:37 Sat 05apr2025PDT which cleared the immediate issue.

It appears that nds1 had a connection burst of over 300 connections requests at 23:30 Fri 04apr2025PDT which caused the issue. The daqd process continued to run after that but was no longer accepting any connection requests until the restart this morning.

david.barker@LIGO.ORG - 10:36, Saturday 05 April 2025 (83751)

I rebooted nuc5 at 10:28 to get the Seismic BLRMS FOM running again. I think the other FOMs can wait till Monday.

LHO General
tyler.guidry@LIGO.ORG - posted 17:18, Friday 04 April 2025 - last comment - 09:06, Saturday 05 April 2025(83745)
Potable Supply Valved Out to All Buildings
I received a call from Oli at 11:46 this morning informing me that water pressure at the building had fallen. I logged into the FMCS remotely and found that the potable holding tank had been completely drained and only one RO was making water. Before leaving home to come out to site, I contacted Randy and had him manually disable the domestic pressure skid and force the second RO skid on. At this point, because of the known leak, Richard and I have decided that the RO system will replenish the potable holding tank but that the water supply will remain valved out so as not to continue to tax the entire water treatment plant. 

C&E Trenching who had already been slated to come make the repairs next week has been contacted. After explaining the current situation, they have graciously agreed to move us up in their schedule and will be on site Monday Morning to being the work. Once the repair is made, water should be restored.

T. Guidry
Comments related to this report
david.barker@LIGO.ORG - 09:06, Saturday 05 April 2025 (83746)

RO went into alarm Friday 23:53 04apr2025 PDT. I have temporarily removed it from the alarms system and restarted the service 09:04 sat 05apr2025.

LHO VE
janos.csizmazia@LIGO.ORG - posted 15:38, Friday 04 April 2025 (83744)
2025 April vent - VAC diary
Today's activities:

- All the turbos have been valved out and switched off
- The corner was vented through the Y-manifold vent valve, with 3-4 Torr/min speed - it took 3.5 hrs
- As a side effect, the current of GV5's AIP went up, so now this Annulus volume is being pumped with an aux cart
- Another aux cart is pumping the RGA in the corner (between HAM5 and HAM4)
H1 General
oli.patane@LIGO.ORG - posted 14:46, Friday 04 April 2025 (83743)
Ops Day Shift End

TITLE: 04/04 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY: Done early for today! The corner is vented! It's possible that not everything got finished today due to a lack of water pressure causing people to leave early, but at least all of the most important tasks have been completed, if not all of them.

LOG:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

Start Time System Name Location Lazer_Haz Task Time End
15:37 FAC Randy, Mitchell LVEA n Craning 16:52
15:54 FAC Kim LVEA n Tech clean 17:42
16:09 VAC Jordan, Gerardo, Janos LVEA n Corner vent 21:41
16:57 ISC Rahul, Siva, Mayank OpticsLab y(local) ISS Array (Siva out 18:31) 20:03
17:29 FAC Mitchell MY n Looking for parts 17:57
17:30 ISC Jennie OpticsLab y(local) ISS Array 18:30
17:54 PCAL Tony PCAL Lab y(local) Measurement 18:32
17:58 FAC Mitchell LVEA n Installing HAM1 ISI installation fixture 19:02
19:14 VAC Janos EY n Picking up equipment 20:07
20:32 PCAL Tony PCAL Lab y(local) Getting ready for weekend lab mode 20:40
20:38 FAC Tyler LVEA n Kickin tires with the VAC guys 20:49
LHO VE
david.barker@LIGO.ORG - posted 10:21, Friday 04 April 2025 - last comment - 10:22, Friday 04 April 2025(83741)
Fri CP1 Fill

Fri Apr 04 10:06:13 2025 INFO: Fill completed in 6min 10secs

 

Images attached to this report
Comments related to this report
david.barker@LIGO.ORG - 10:22, Friday 04 April 2025 (83742)

For the duration of the vent I have removed PT132_MOD2 gauge from the alarm system.

H1 General
oli.patane@LIGO.ORG - posted 07:36, Friday 04 April 2025 (83740)
Ops Day Shift Start

TITLE: 04/04 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
OUTGOING OPERATOR: None
CURRENT ENVIRONMENT:
    SEI_ENV state: MAINTENANCE
    Wind: 6mph Gusts, 4mph 3min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.11 μm/s
QUICK SUMMARY:

Today's a pretty light day, mostly just venting the corner and some work around HAM1 to prepare for the ISI installation. Here's what's planned:

LHO VE
janos.csizmazia@LIGO.ORG - posted 18:30, Thursday 03 April 2025 (83738)
2025 April vent - VAC diary
Today's activities:

- HAM1's Y+ and Y- doors have been taken off (thanks to Tyler, Randy for the help in the door removal, and to Tony and Corey for breaking the bolts earlier)
- All 5 HAM1/HAM2 viewport covers have been installed
- The 16.5" flange was taken off from the top of HAM1 - this will be the basis of the new vacuum interlock gauge
- A high number of leak checking was done, in detail:
 - Y-manifold: Y+ X+ side flanges (3 pcs.); Turbo flange (1 pc.)
 - BSC8: Y+ X+ corner (3 pcs.); Y- X+ corner (3 pcs.); X+ HEPI bellows (2 pcs.); X+ collar 16.5" flanges (2 pcs.)
 - BSC8-BSC1 spool: Y+ X+ flanges (3 pcs.)
 - BSC1: Y+ X+ side flanges (3 pcs.); X+ collar flanges (2 pcs.); X+ HEPI bellows (2 pcs.); X+ door flanges (5 pcs.); Y- X+ side flanges (3 pcs.)
 - BSC2: Y+ X+ side flanges (3 pcs.)
 - BSC3: Y+ HEPI bellows (2 pcs.); Y+ X- side flanges (3 pcs.); Y+ collar flanges (2 pcs.); Y+ door flanges (5 pcs.); Y+ X+ side flanges (3 pcs.)
 - HAM2-HAM3 spool: vent port (1 pc.); X- flanges (11 pcs.); Y- side flanges (2 pcs.); X+ Y- flanges (5 pcs.)
 - HAM3: Y- door flanges (5 pcs.)
LHO General
tyler.guidry@LIGO.ORG - posted 16:38, Thursday 03 April 2025 (83737)
Water Leak
Beginning early last week water usage, specifically what is delivered to the buildings following treatment, spiked. Not only was our consumption far outside of our normal usage during operating hours, but it was significantly higher than we would expect in off hours/weekends. After tracking burn rates, I calculated an average continuous flow of ~1.25gpm. 

With the help of the operator core and Richard, Facilities began the process of trying to determine the source of the lost water. This usually means site walks both inside and out looking for running water/stuck valves/wet areas. Persistent rain was no help in determining a potential source outside and there was no apparent continuous/suspect flow inside. Given that, we began the process of elimination by isolating water supply to individual buildings. We began with the staging and VPW which share a shutoff valve but to no avail. The same was done at the LSB and LExC yielding the same result. Head scratching continued and I eventually stumbled upon a small wet area of asphalt just outside the Carpenter Shop near the potable water holding tank. It was not immediately clear to me that this would be the source of the leak since the rain was still intermittent and the presence of water was pretty unsuspecting given what we have likely put in the ground in that area. So, I snapped a photo and kept an eye on this area in the coming days. Each day that went by the spot did not dry and actually grew larger. At this point it is clear that the water leak is beneath the asphalt and judging by the as-built drawings is probably a failed 45 deg joint. 

Beginning early next week the asphalt will be removed and the surrounding area will be vacuumed out as opposed to dug so as not to have to interrupt the supply of high volts to the chillers etc. Once the failed area is identified potable supply will have to be cut off to the entire site while repairs take place.

E.  Otterman R. McCarthy C. Soike T. Sanchez T. Guidry 

Images attached to this report
H1 SYS
betsy.weaver@LIGO.ORG - posted 16:22, Thursday 03 April 2025 (83736)
Progress of Vent work this week
Images attached to this report
H1 AOS
filiberto.clara@LIGO.ORG - posted 15:48, Thursday 03 April 2025 (83735)
HEPI Upgrade Preparation

WP 12408
ECR E2200043

Beckhoff electronics for the HEPI Controller Upgrade are now installed in the MER. Power and network cables were pulled from the Mechanical Room vacuum rack. Power to the electronics is on the vacuum UPS. Field cables to BSC2 are now terminated. Modifications to the motor control panel are still required. They will be done concurrently with the software updates as HEPI needs to be taken offline. Date for upgrade TBD.

Images attached to this report
H1 PEM
ryan.crouch@LIGO.ORG - posted 15:40, Thursday 03 April 2025 (83734)
BSC8 dust monitor

I noticed that the 500nm counts were stuck so I restarted the dust monitor (didn't fix the stuck value), and restarted the IOC but it didn't come back after the restart, the dust monitor isn't writing 2 values correctly it seems? I might have to swap this to another dust monitor, I don't have any more spare pumped dust monitors so I think I would want to take one of the 2 currently in stagings' ground floor if possible. I also double checked that all the settings on the actual device were the same as the others. The 0.3 RAW counts seem to be still working confusingly.

The reported error is as follows

2025/04/03 15:16:59.169508 gt521s1 H1:PEM-CS_DUST_LVEA10_300NM_RAW_IN: Input "    ,   ,010,060,000..." does not match format "%*[-0-9]*[:0-9]*ff*f*f*f"

 

H1 CDS (ISC)
filiberto.clara@LIGO.ORG - posted 15:25, Thursday 03 April 2025 (83732)
HAM1 ASC RELF WFS Cabling

WP 12438
Rack Layout D1001425

RF cables for ASC REFL WFS were pulled to HAM1 flange D6. Cables need to be dressed into the ISC-R2 rack. Some electronics in ISC-R2 were moved to make room for a delay line and 2-Ch Demodulator. Delay line chassis is installed. Demodulator chassis is being assembled at CIT. Existing coaxial cables need to be tested for delay phase before being pulled out and re-terminated. At this time some patch panel work in ISC-R2 will also be done.

F. Clara, M. Pirello, T. Sanchez, D. Sigg

H1 SEI
jim.warner@LIGO.ORG - posted 14:25, Thursday 03 April 2025 (83730)
HAM1 ISI refit mostly done, will switch containers next week

FInished updating the sensors for HAM1 ISI in the staging building. New CPS seem to be alive and noise is within spec, considering the state the ISI is in (on storage container base and locked). TMDs and vertical L4Cs will be added in chamber. We will swap to the narrower transport base next week in prep for moving to OSB. I will post asds for cps soon, screenshot isn't working on this laptop.

LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 14:12, Thursday 03 April 2025 - last comment - 18:46, Thursday 03 April 2025(83729)
OPS Day Shift Summary

TITLE: 04/03 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:

IFO is in PLANNED ENGINEERING for VENT

Extremely productive day in which the following tasks were completed:

Attached is a photo of the most recent SUS/SEI guardian configurations.

Oli is taking over the shift for the remaining 2 hours.

LOG:

Start Time System Name Location Lazer_Haz Task Time End
14:38 FAC Randy LVEA N Laying down ameristat HEPI grout areas 16:19
14:49 FAC Chris LVEA N Giving Randy tape at HAM1 17:30
14:49 FAC Kim LVEA N Technical cleaning 17:32
14:49 FAC Nellie LVEA N Technical Cleaning 16:37
14:51 FAC Tyler LVEA N Forklift moving 14:52
15:15 VAC Jordan LVEA N Pump check 15:22
15:54 FAC Jordan LVEA N Continue leak checking 19:06
16:15 VAC Travis LVEA N Leak Checks 19:21
16:16 ISC Sivananda Optics Lab Local ISS Array work 19:03
16:16 ISC Mayank Optics Lab Local ISS Array Work 19:03
16:17 AOS TJ LVEA N Corner station dust monito 16:43
16:19 FAC Tyler, Tony LVEA N Moving cleanroom 17:30
16:38 SEI Fil LVEA N HAM1 Cable Work 17:55
16:44 EE Marc LVEA N HAM1 Cable Work 18:00
16:55 PEM TJ LVEA N Checking dust monitor 17:31
17:05 AOS Betsy LVEA N Walkabout 17:29
17:12 ISC Rahul Optics Lab Local ISS Array Work 19:03
17:15 FAC Tyler LVEA N Taking HAM1 -Y Door Off 19:21
17:27 FAC Richard LVEA N Walkabout 17:29
17:27 ISC Jennie Optics Lab Local ISS Array Work 19:03
18:06 AOS Ibrahim LVEA N Checking progress; delivering parts 18:13
18:07 CDS Fil LVEA/MER N Prep HEPI pump upgrade; terminating cables 21:15
18:29 PCAL Tony PCAL Lab y(local) PCALin' 19:23
18:40 EPO Mike, Dutch Envoy, Betsy, Richard LVEA N Walkabout 19:21
19:16 ISC Daniel LVEA N Looking at racks 20:05
19:58 EE Fil LVEA n Electronics rack work 21:58
20:19 VAC Travis LVEA N HAM1 viewport covers 22:19
20:22 IAS Jason, Ryan LVEA N FARO Work 20:35
20:24 SUS Mayank, Sivananda, Betsy LVEA N HAM1 Work 21:24
20:41 VAC Gerardo LVEA N HAM1 Work 21:41
20:48 VAC Janos, Jordan LVEA N Leak Checks 21:48
20:50 FAC Jackie, Richard LVEA N Walkabout 20:58
Images attached to this report
Comments related to this report
oli.patane@LIGO.ORG - 18:46, Thursday 03 April 2025 (83739)

Other stuff that happened today:                                                                                                                                                                                                                                                                        

Start Time System Name Location Lazer_Haz Task Time End
21:11 EPO Mike, Dutch Envoy EY N Diplomacy 22:03
21:28 PEM RyanC LVEA NN Check on DM10 21:34
21:50 PEM RyanC LVEA N Check on DM10 again 21:55
22:07 PEM RyanC LVEA N Third time's the charm 22:18
22:50 PCAL Tony PCAL Lab y(local) Setting up a measurement 23:01
23:02 EPO Camilla, Matt, tour LVEA n Tour 23:37
23:24 tour Ibrahim, +1 LVEA n tour 23:42
23:43 ISC Mayank, Siva OpticsLab y(local) ISS Array 23:57
23:44 ISC Rahul OpticsLab y(local) ISS Array (in 1 hour before) 23:44
00:59 PCAL Tony PCAL Lab y(local) Closing sphere apetures 01:04
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