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Reports until 15:08, Tuesday 10 June 2025
H1 SQZ
camilla.compton@LIGO.ORG - posted 15:08, Tuesday 10 June 2025 - last comment - 10:33, Wednesday 11 June 2025(84941)
No SQZ Time

No SQZ time taken today, 21:47:00UTC to 21:59:00UTC.

Attached plot shows today (in black) compared to before the vent (orange) and last year (red).
Our no sqz now looks very similar to before the the vent apart form the increased jitter lines 300-700Hz (hopefully from HAM1 VAC pumps). Both 2025 plots are worse at high frequency and 40-70Hz compared to last years, maybe this could be an calibration artifact?
Images attached to this report
Comments related to this report
anthony.sanchez@LIGO.ORG - 10:33, Wednesday 11 June 2025 (84970)

2 Seconds of data in this data span is missing.
Our tools can't pull the entire time for this No SQZ ing time.
Johnathan has given us the 2 seconds that are missing from the data 12 minute data stretch.

"I don't have good news for you.  There is a 2s gap in there at 1433627912-1433627913 on H-H1_llhoft.  The H-H1_HOFT_C00 is worse, I don't see frames in the 1433627.... range at all." ~ Johnathan H.

We were able to salvage 674 seconds from this time that can be useful. 
Useful GPS time: 1433627238 -1433627912

 

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