Reports until 16:01, Monday 18 March 2024
LHO General
ibrahim.abouelfettouh@LIGO.ORG - posted 16:01, Monday 18 March 2024 (76495)
OPS Day Shift Summary

TITLE: 03/18 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Corey
SHIFT SUMMARY:

IFO is in NLN and COMISSIONING (3hr 45 min lock)

 

16:10(ish) UTC - Began Initial Alignment (couldn’t lock DRMI)

16:30 UTC - Initial Alignment Complete

16:51 UTC - NLN Reached

 

HAM7 Watchdog Story

17:04 UTC - ISI HAM7 WD Tripped - initially assumed due to Nutsinee’s work in LVEA.

17:20 UTC - Nutsinee out - claims to have been very stealthy and to not have caused the trip - her measurements started 1 minute after the trip.

17:35 UTC - HAM7 WD Untripped (was investigating separate issue)

18:36 UTC - HAM7 WD investigation where Jim and Nutsinee attempted to go in and recreate the trip but nothing tripped - interesting..

 

EX ISI WD Trip Weirdness Story

17:12 UTC DCPD Lockloss, appears to have kicked HEPI 200 microns in the horizontal in <4s - somebody should investigate the TIDAL signal.

17:12 UTC - ISI ETMX WD Tripped (Stage 1 and 2) due to the aforementioned HEPI kick (according to Jim) - no vehicles nor personnel there so reason unknown - WD untripped - happened 2s after lockloss and did not CAUSE lockloss.

 

ITMX IOP Down & Reboot Story

17:20 UTC - IOP for ITMX is down dave noticed

17:23 UTC - Fil is taking a look

17:26 UTC - Rebooting SEIB3 rack (adjacent to what Fil was working on so may have been that).

17:33 UTC - IOP rebooted and WDs reset -0 will take a few minutes because HEPI went down and as it goes up, it rings up the T240s - estimated 3-4 minutes until fully untripped and models are back

17:44 UTC- HEPI Back, commencing relock

 

PSL RM (101) Dust Monitor Story

15:30 UTC - Dave restarting dust monitors

17:21 UTC - Dust Monitor 101 not back - not getting data, someone may have forgotten to plug it in according to Dave

18:38 UTC - Ryan S informed of the PSL101 Laser RM dust monitor not receiving data - might go in to investigate tomorrow.

 

19:13 UTC - NLN Reached 

19:13 UTC - Turning on SQZ Angle Adjust


LOG:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

Start Time System Name Location Lazer_Haz Task Time End
15:11 FAC Karen Optics Lab N Tecnical Cleaning 15:40
15:39 FAC Karen MY N Technical cleaning 16:39
16:08 PCAL Tony/Dripta/Daiki/Francisco Optics Lab N Responsivity measurement 17:30
16:58 SQZ Nutsinee LVEA Local SQZ Test 17:35
17:10 EE Fil CER N BSC Interface Chassis Diagnostics 18:10
17:39 FAC Kim MX N Technical Cleaning 18:39
18:19 SQZ Jim, Nutsinee LVEA N Tripping HAM7 18:36
19:00 PCAL Tony/Francisco Optics Lab N Getting a laser off integrating spheres 20:00
20:49 FAC Tyler EX M Escort to EX 21:49