TITLE: 08/29 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Preventive Maintenance
INCOMING OPERATOR: Ryan S
SHIFT SUMMARY:
PSL anteroom (101) dust counts have been elevated throughout the day, related alog72507. The EY chiller work continued into the afternoon, and the annulus pump was left on at EX till 21:00UTC. We struggled to relock today after maintenance.
Lock#1:
No flashes during DRMI or PRMI, lost it during CHECK_MICH_FRINGES
Lock#2-6:
- Couldn't get DRMI or PRMI, went into Initial Alignment
- Lockloss at DRMI_LOCKED_CHECK_ASC 19:48UTC
- Lockloss at ACQUIRE_DMRI_1F 19:56, Xarm got fuzzy then lost it
- Lockloss at ACQUIRE_DMRI_1F again, 20:02, looks like Xarm lost it again
- Same scenario at 20:09UTC, Xarm seems be getting noisier with each attempt?
- We had a few locklosses at ALS, from Xarm still
Lock#7-12:
We survived to PARK_ALS_VCO but then lost it again from Xarm. So this isn't an ALS issue, since ALS isn't used anymore at this point.
We lost lock at DMRI_LOCKED_PREP_ASC twice without the Xarm issue happening.
After several more attempts and a few more set of eyes looking at the IFO we were able to slowly step up to a higher state and it got to PREP_ASC where we decided to just request NLN and let it go. Lost lock at CHECK_VIOLINS at 21:40UTC.
We continued to struggle at ALS, IR, and DRMI, but after a bit we were able to make it up to ADS_TO_CAMERAS where we are as of 23:00UTC
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 15:00 | FAC | Karen | EndX | N | Tech clean | 16:09 |
| 15:02 | FAC | Cindy | FCES | N | Tech clean | 15:55 |
| 15:08 | OAF | Dave | Remote | N | WP11387: New h1oaf and h1bos models for Jenne, no DAQ restart | 18:31 |
| 15:09 | PEM | Dave | Remote | N | WP11393: New h1pemcs model for Cosmic Ray, DAQ restart is required | 18:31 |
| 15:10 | DAQ | Dave | Remote | N | WP11391: Restart DAQ to enable MD5 checksum file generation, pemcs changes, and possibly Beckhoff changes | 18:32 |
| 15:12 | OPS | Oli | LVEA | N | Quarterly DM checks | 15:56 |
| 15:16 | VAC | Jordan | MidY, EndY | N | Turbo pump tests | 17:26 |
| 15:28 | FAC | Tyler + Mac Miller | EndY | N | Chiller investigation | 18:00 |
| 15:32 | VAC | Gerardo | LVEA | N | Grab parts | 15:41 |
| 15:41 | FAC | Mitch | LVEA | B | Checks | 16:20 |
| 15:42 | VAC | Janos, Gerardo | EndX | N | Annulus pump replacement | 18:04 |
| 15:48 | FAC | Chris | LVEA | N | FAMIS checks | 16:38 |
| 15:49 | SQZ | Vicky | LVEA | LOCAL | SQZT7 LOCAL HAZARD work | 18:33 |
| 15:58 | OPS | Oli | FCES | N | DM checks | 16:33 |
| 16:00 | EE | Fil | CER | N | Inventory | 18:54 |
| 16:08 | SEI | Jim | CR | N | HAM1 TFs | 17:51 |
| 16:09 | FAC | Karen | MidX, beamtube | N | Tech clean | 16:47 |
| 16:12 | EE | Marc | CER | N | Cosmic ray detector | 18:54 |
| 16:39 | FAC | Chris | EndY, then X | N | FAMIS checks | 17:41 |
| 16:40 | FAC | Mitch, Randy | LVEA | N | Craning HEPI piers | 18:50 |
| 16:45 | OPS | Oli, Richard | Ends | N | DM checks, PA checks | 17:40 |
| 16:47 | SQZ | Sheila | LVEA | LOCAL | SQZT7 work | 18:33 |
| 16:51 | EE | Ken | MSR | N | Lights | 20:51 |
| 17:06 | FAC | Cindy | LVEA | N | Tech clean | 18:37 |
| 17:08 | CDS | Patrick | Office | N | Camera servo updates | 17:33 |
| 17:58 | SQZ | Naoki | LVEA | LOCAL | SQZT7 work | 18:32 |
| 18:04 | VAC | Jordan, Janos | LVEA | N | Check hepta line | 18:48 |
| 18:19 | EPO | Jeff + Tour | LVEA | N | Tour | 19:05 |
| 18:41 | PEM | Lance | LVEA | N | Check a bolt | 18:50 |
| 18:30 | FAC | Cindy | High bay | N | Tech clean | 18:49 |
| 18:51 | VAC | Gerardo | FCES | N | Measurements | 19:11 |
| 20:38 | SQZ | Vicky, Sheila | LVEA | LOCAL | SQZT7 pd alignment check | 21:06 |
| 20:57 | VAC | Gerardo | Xarm | N | Check on annulus pump | 22:06 |
| 21:46 | CAL | Tony | PCAL lab | LOCAL | PCAL work | 23:46 |
| 22:18 | FAC | Tyler + 1 | SIte, EndY | N | Site tour, air handlers | 23:18 |
