Reports until 18:45, Thursday 01 October 2026
H1 General
ryan.crouch@LIGO.ORG - posted 18:45, Thursday 01 October 2026 - last comment - 07:38, Friday 02 October 2026(92150)
OPS Thursday Eve shift summary

TITLE: 10/02 Eve Shift: 2330-0500 UTC (1630-2200 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
INCOMING OPERATOR: None
SHIFT SUMMARY: Not much to report, there's an issue with the TR_CARM states to be further addressed tomorrow. Jim and Arnauld worked on some CRS damping.  ISC_LOCK is being held in down. Arnaud might touch the CRS a little more tonight.
LOG:                                                                                                                                                                           

Start Time System Name Location Lazer_Haz Task Time End
22:57 pcal tony.camilla pcalLab yes beam profiling 23:55
23:25 cheta sophie ChetaLab no cheta work 23:42
00:14 TCS Sophie CHETA lab N Recover laptop 00:15

00:15 UTC A few HAM3 ISI trips from CRS testing

Comments related to this report
corey.gray@LIGO.ORG - 07:38, Friday 02 October 2026 (92159)
Link

Forgot to submit summary yesterday:
 

TITLE: 10/01 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:

Return to DRMI locking!
LOG:

  • 1430 X-arm BTE/road work (randy)
  • 1445 SEI_ENV from Maint to CALM
  • 1450 ALSx & PCal lasers ON + HV check/turned on (tj)
    • Seems like everything was on
    • HV on and active, ALSx laser power always on?
  • 1511 HAM3 shakes (arnaud)
  • 1512 Tests for Frame writer, no effects should be seen in cr (jonathan)
  • 1513 alsx baffle_tms started on grd (while watching "baffle PDs Xarm scope from init_align.adl)
    • 1516 "unable to find baffle PD1 w/ tmsx"
    • 1519 "unable to find baffle PD4 w/ tmsx"
    • 1520 "TMSx dither alignment finished" (& GREEN "BAFFLE_ALIGN_TMS" state)
    • Does this mean it's done??
  • 1531-1608 supply checks at EX (kim)
  • 1543 betsy out in lvea to grab kit
  • 1615 EX alignment checks for TMS (sheila,tj)
  • 1623 EX to HAZARD
    • 1705 back to SAFE
  • 1630-1740 Install new anemometer for corner (fil)
  • 1716 phone call from hanford's EOC to confirm contact phone numbers (control room, landry, mccarthy)
  • 1726-1852 CHETA lab work with laser hazard (camilla.sophie)
  • 1750 SPI electronics checks (jennie.marc)
    • 1834-1844 back on the floor to remove chassis (jennie.marc)
  • 1843 powering on CRS laser (jim)
  • 2020-2149 CHETA lab work w/ laser hazard again (camilla.sophie)
  • 2205-2213 Returning a motor for GV20 to EX VEA (tyler)
  • 2252-2301 Checks at psl racks (sheila,louis,jennie)
  • 2254 beam profiling in Pcal Lab (tony.camilla)
  • 2324 CHETA work, no laser hazard (sophie)