Ops Shift Log: 07/20/2017, Owl Shift 07:00 – 15:00 (00:00 - 08:00) Time - UTC (PT)

State of H1: Locked at NLN for past 4.75 hours. Power at 29.2w; range at 51.6Mpc

Intent Bit: Observing

Support: N/A

Incoming Operator: Ed

Shift Summary: Lockloss – The noise up to 100Hz has been elevated for the past hour. Saturation in ASC_CSOFT_P. Noise looked a bit like RF45 noise but Dataviewer did not confirm. While relocking had OMC DCPD Saturation during INCREASE_POWER and lost lock at LOWNOISE_ESD_ETMY. Relocked without further issue and back to Observing.

Still seeing glitches on DARM below 100Hz, although not as bad as before the lockloss. Wind is up a bit and bringing up the microseism.     

 

Activity Log: Time - UTC (PT)

23:00 (16:00) Take over from Corey

09:15 (02:15) Lockloss – For the past hour bad noise in DARM up to 100Hz.

10:21 (03:21) Relocked and back to Observing

10:36 (03:36) Damp PI Mode-27

15:00 (08:00) Turn over to Ed