Reports until 16:29, Friday 18 September 2026
H1 General
ryan.crouch@LIGO.ORG - posted 16:29, Friday 18 September 2026 - last comment - 16:47, Friday 18 September 2026(91977)
OPS Friday Day shift summary

TITLE: 09/18 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
INCOMING OPERATOR: Corey
SHIFT SUMMARY: Keita worked more on PRMI and ASC, we now have working ASC MICH loops. We also locked DRMI around 23:00 UTC at ~68 and ~12. The pump down continues over the weekend on both ETMX and the X/Y BMs.
LOG:                                                                                                                                                                                                                                                                                

Start Time System Name Location Lazer_Haz Task Time End
15:17 VAC Jordan LVEA N Restart X/YBM pump downs 15:43
16:29 VAC Jordan LVEA N Check on pump down 16:52
20:09 FAC Mitch LVEA N FAMIS tasks, HEPI checks... 20:53
21:01 VAC Jordan EndX N Check out pump down, turn off compressor 21:34
21:34 VAC' Jordan LVEA N Check on pump down 22:34
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Comments related to this report
corey.gray@LIGO.ORG - 16:47, Friday 18 September 2026 (91981)

Short shift tonight.  

  • After Keita left for the night, took ISC_DRMI to DOWN.
  • Jennie most likely be running a temperature test for JAC
  • Both the manifolds are on turbos so they will be pumping over the weekend.