Reports until 10:15, Thursday 13 July 2023
H1 ISC (CAL)
oli.patane@LIGO.ORG - posted 10:15, Thursday 13 July 2023 - last comment - 10:41, Thursday 13 July 2023(71295)
Alternating between NLN_CAL_MEAS and NOMINAL_LOW_NOISE to Compare Noise Floor

While Livingston is down, we took the opportunity to take some measurements to verify this alog by Elenna (71149). We moved out of Observing into Commissioning and alternated between NLN_CAL_MEAS and NOMINAL_LOW_NOISE, switching between them every 5 minutes and going through three cycles of this.

Times (UTC):

 - 16:25:13 NLN_CAL_MEAS
 - 16:30:57 NOMINAL_LOW_NOISE
 - 16:35:21 NLN_CAL_MEAS
 - 16:41:21 NOMINAL_LOW_NOISE
 - 16:46:18 NLN_CAL_MEAS
 - 16:51:43 NOMINAL_LOW_NOISE

 

Comments related to this report
gabriele.vajente@LIGO.ORG - 10:38, Thursday 13 July 2023 (71296)
Link

Wiith this higher low-frequency noise, there is only a small improvement around 20 Hz when the lines are off.

Images attached to this comment
louis.dartez@LIGO.ORG - 10:41, Thursday 13 July 2023 (71297)
Link 

tagging CAL

IFO was thermalized during these tests