ryan.short@LIGO.ORG - posted 15:12, Wednesday 22 July 2026 - last comment - 17:41, Wednesday 22 July 2026(91195)
Ops Day Shift Summary
TITLE: 07/22 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: Ibrahim
SHIFT SUMMARY: Work continued on aligning the IFO towards the goal of locking DRMI after a morning of running various SUS and SEI measurements. The LVEA remains Laser HAZARD and End X is also HAZARD for the afternoon.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 14:42 | FAC | Kim | LVEA | - | Technical cleaning | 15:13 |
| 15:13 | FAC | Kim | EX | - | Technical cleaning | 16:31 |
| 16:23 | PEM | Robert, Miranda, Shrey | Overpass | - | Seismometer tests | 18:20 |
| 16:28 | SEI | Jim | LVEA | - | HAM2 L4C cabling | 17:10 |
| 16:28 | VAC | Jordan, Gerardo | MY | - | Pumping on LN2 dewar | 17:15 |
| 16:31 | FAC | Kim | LVEA | - | Technical cleaning | 17:11 |
| 16:35 | TCS | Madi | OptLab | - | HWS lens testing | 18:16 |
| 17:39 | SUS | Rahul | LVEA | - | Unlocking ZM5 | 17:58 |
| 17:39 | TCS | Camilla | OptLab | - | HWS lens testing | 18:16 |
| 17:47 | CDS | Dave | Remote | - | DAQ restart | 18:00 |
| 18:00 | SUS | Rahul | CR | - | ZM2 TFs | 18:17 |
| 18:17 | SEI | Jim | CR | - | HAM3 ISI measurements | 19:05 |
| 18:21 | VAC | Jordan, Gerardo | LVEA | - | Corner RGA work | 18:58 |
| 18:51 | TCS | Camilla | PrepLab | - | Cleaning up | 19:51 |
| 19:07 | EPO | Robert +1 | LVEA | - | EPO pictures | 20:03 |
| 20:02 | ISC | Sheila | LVEA | Y | ISCT1 alignment | 20:50 |
| 20:03 | CAL | Tony | EX | - | Grabbing something | 20:32 |
| 20:16 | ISC | Jennie | LVEA | Y | ISCT1 alignment | 20:51 |
| 20:16 | VAC | Jordan | MY | - | Checking pumps | 20:36 |
| 20:32 | SAF | Fil | LVEA | - | Checking interlock electronics | 21:51 |
| 20:56 | SUS | Oli | LVEA | - | Turning on BS sat amp whitening | 21:02 |
| 21:16 | TCS | Madi | OptLab | - | Packing things up | 21:48 |
| 21:37 | SQZ | Camilla | LVEA | Y | HAM7 alignment | Ongoing |
| 21:54 | TCS | Madi, TJ | EX | Y | HWS table work | Ongoing |
| 22:03 | SAF | Richard | CER | - | Checking electronics | Ongoing |
TITLE: 07/23 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:
IFO is in DOWN for PLANED ENGINEERING
Not much to update after Ryan S's shift other than:
alog 91199 - JAC Guardian work
alog 91197 - new ZM2 Alignment
Additionally, Gerardo realized that MSR temperatures are spiking seemingly randomly. See attached. RACK2 is showing sharper peaks than RACK1, which implies that the heat source is near there? Tagging CDS in case it's an electronics issue.
LOG: