Reports until 09:50, Wednesday 13 March 2024
H1 SQZ
camilla.compton@LIGO.ORG - posted 09:50, Wednesday 13 March 2024 - last comment - 09:56, Thursday 14 March 2024(76324)
No SQZ time this morning 15:29UTC to 15:51UTC

No SQZ time taken this morning 15:29UTC to 15:51UTC. There was small glitches at 15:35:37 and 15:41:53. Best stretch of time is 15:42:00 to 15:51:00. Took no sqz time with hot OM2 in 74834 / 74640, Cold OM2 Dec 20th 18:00- 18:18UTC 74935.

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minhyo.kim@LIGO.ORG - 12:40, Wednesday 13 March 2024 (76342)

Minhyo

I compared the DARM sensitivity with NO SQZ and OM2 cold condition between today's morning and one in O4a (20/12/2023, 18:10 UTC)

(Also refer to Elenna's alog: 76277)

Seems that the sensitivity don't show much difference above 100 Hz, but noise went up in low frequency.

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camilla.compton@LIGO.ORG - 09:56, Thursday 14 March 2024 (76373)

Other no SQZ times taken yesterday:

  • 20:06 to 20:1UTC: OMC ASC off
  • 20:28 to 20:38UTC: with new OMC alignment and analyzed in 76348