Reports until 08:02, Thursday 12 June 2025
H1 General (SUS)
anthony.sanchez@LIGO.ORG - posted 08:02, Thursday 12 June 2025 - last comment - 09:14, Thursday 12 June 2025(84991)
Thursday morning Ops shift start

TITLE: 06/12 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 144Mpc
OUTGOING OPERATOR: Ibrahim
CURRENT ENVIRONMENT:
    SEI_ENV state: CALM
    Wind: 6mph Gusts, 4mph 3min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.11 μm/s
QUICK SUMMARY:

H1 is still locked and has been for 5 hours and 45 minutes.
But the DCPDs are diverging again, Like there is some sort of Roll mode ring up again.
Turns out its the Same Roll mode from yesterday. I applied the same gain from yesterday to the roll mode and it has turned around immediately. I have accepted this as an SDF Diff so we can stay observing.
GRB-Short E573164 @ 1454 UTC stand down

it has been requested of me to run the PSAMS script if we were still locked this morning. Camilla just walked and I her and I will start working on PSAMs when the Stand Down ends.

 

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camilla.compton@LIGO.ORG - 09:14, Thursday 12 June 2025 (84993)

Dropped out of Observing for Commissioning at 15:51UTC. Optimistic plan for commissioning time today:

  • [Camilla] PSAMS Scan, aim to make SQZ better over all frequencies
  • [Robert] Remove VP covers and photo, aim to evaluate CPY move
  • [Elenna] LSC FF edits to avoid ETM Roll Mode ring up
  • [Robert] HAM1 Shaker, other PEM injections.
  • [Kevin] 10kHz ADF Injections, aim to understand HOMs
  • [Sheila+OPS] OMC alignment checks
  • [Kevin] SQZ ADF sweep, aim to understand SQZ/IFO
  • [Camilla,Sheila] SQZ data set, aim to understand SQZ
  • [Sheila,Elenna,Jennie] Noise Budget injections, aim to see Jitter, Intensity and ASC contributions.