TITLE: 04/14 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:
Iluminators for HAM3 BSC1 and 2 are now on.
HEPI and ISI for BSC2 is locked out. tagging PEM. and there is now a Red H1:SYS-ETHERCAT_DEVICE_1_SLAVECOUNTACTUAL due to the iluminator Chassis device that Fil turned on between BSC1 and BSC1 in the beergarden to allow the illuminators to turn on. tagging CDS.
PCAL troubleshooting:
Dripta and I were trying to take FFT's of PCAL Lines for more Power budget work and we noticed that the PCAL Y laser is off with no current on H1:CAL-PCALY_LASERDIODECURRENT. I trended the channel back and compared it with some channels that I thought may link it to the IOP restarts.
Dripta went to EY to toggle the Laser power rocker switch just in case it was just a simple issue of a turn it off and back on again. Tagging CDS again.
I noticed that MC1 & 3 were saturating.
IMC H1:IMC-WFS_GAIN was set to 0 and the history was cleared to solve the problem of MC1 & MC3 were being saturated.
Trending some channels that were suspected to perhaps be the cause of the junk signal and thus the cause of the saturations.
The IMC ASC has it's own block to do power normalization, different from the LSC power normalization. The output of this block is "INNORM" used to normalize MC2 NSUM for the IMC WFS triggering.
Relavent FRS ticket:
https://services1.ligo-la.caltech.edu/FRS/show_bug.cgi?id=9387
More IOP model restarts happening again for HAMS 7,8 then HAM 5,6, & BSCs 1,2, & 3.
Please see the attached SDF Diffs for HAMs 5, 6 and the BS:
SUSSR3
SUSRM
SUSIFOOUT
SUSSQZOUT
SUSBS (my bad I had sort on substring selected with an old Optical Align string in the search field.)
All SDFs were accepted before the IOP restart.
ITMS IOPs have not been rebooted yet. Tagging SUS, SQZ & ISC
MC2_trans Beam Dump twas Twissled today, then put back into original place.
The ITMs had their IOP's restarted after a time cable swap today as well.
All SUS were turned back to Aligned.
SEI for HAM 2,3,4 and BSC 1 & 2 still have their HEPI's and or their ISI's WD tripped or other wise in a ISI Damped Hepi offline state.
A slightly less exciting trend of ITMX.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 14:47 | FAC | Randy | LVEA | n | Prep for dome removal and other moves | 16:06 |
| 15:09 | FAC | Kim, Nelly | LVEA | n | Tech clean - HAM3, Biergarten | 16:07 |
| 15:47 | FAC | Randy | LVEA BSC2 | N | Working on removing BSC2 Dome | 16:06 |
| 16:07 | VAC | Randy | MID Y | N | Picking up matieral | 17:53 |
| 16:09 | FAC | Nellie | Mid & End Y | N | Technical cleaning & Resupply | 18:09 |
| 16:13 | SEI | Jim & Ibrahim | LVEA BeerGarden | N | Locking Hepi , ISI on BSC2 | 18:05 |
| 16:26 | FAC | Kim | LVEA Output Arm | N | Technical Cleaning & Resupply | 17:40 |
| 16:33 | CBEX | Tyler's C&E Trentching | Mid Y | N | trenching for CBEX Building | 02:33 |
| 16:41 | VAC | Gerardo | LVEA BSC2 | N | Removing Vac Equipment from BSC2 dome | 18:10 |
| 16:43 | IAS | Jason | LVEA | N | Warming up the FARO system | 17:13 |
| 17:25 | CHETA | Camilla | Optics Lab | n | Grabbing optics. | 18:26 |
| 17:36 | VAC | Jordan | LVEA BSC2 | N | Helping Gerado | 18:10 |
| 17:38 | EE | Fil & Corey | LVEA | N | Setting up cameras and turning on Illuminators | 19:38 |
| 18:11 | PCAL | Dripta & Disha | EY | N | Power Cycling PCAL laser | 19:02 |
| 18:29 | IAS | Jason & Crouch | LVEA HAM3 to BSC1&2 | N | FARO surveying HAM3 & BSCs | 19:57 |
| 19:37 | IAS | Ibrahim | LVEA BeerGarden | N | DeBaffling | 19:53 |
| 19:41 | VAC | Randy | LVEA BeerGarden | N | BSC2 Dome removal prep | 20:02 |
| 19:51 | EE | Marc & Erik | HAM Shaq & HAM7 | N | Swapping power supply Power cables inside chassis | 20:23 |
| 19:58 | PEM | TJ | EX | N | Checking Dust Mon Pump | 20:29 |
| 20:30 | TCS | Camilla & Maddi , TJ | EX | Yes | Hartman troubleshooting &work | 22:05 |
| 21:01 | IAS | Jason & Ryan, Jim, Ibrahim | LVEA HAM3, BSC1&2 | N | Faro work inside the Vac chambers | 00:05 |
| 21:43 | VAC | Gerardo & Jordan | LVEA HAM1 | N | taking parts off of HAM1 | 22:38 |
| 22:12 | IAS | Sheila | LVEA Ham3 | N | Helping with Faro work | 22:38 |
| 23:19 | IAS | TJ | Optics Lab & LVEA | N | looking for a Class B Ruler in mm. | 23:49 |
