aLIGO LHO Logbook

H1 General

jeffrey.bartlett@LIGO.ORG - posted 20:07, Sunday 23 April 2017 - last comment - 20:11, Sunday 23 April 2017(35736)

Ops Evening Mid-Shift Summary

   In Observing since running A2L script at start of shift. Range is holding around the lower 60Mpc. The wind has freshened, with gusts into the mid 20s, bringing up the primary microseism. A2L looks good. The 4.7KHz violin mode is behaving. All good so far.

Comments related to this report

jeffrey.bartlett@LIGO.ORG - 20:11, Sunday 23 April 2017 (35737)

Link

Late posting of Shift transition log.

Ops Shift Transition: 04/23/2017, Evening Shift 23:00 – 07:00 (16:00 - 00:00) - UTC (PT)

State of H1: IFO locked at NLN, 30.4W and 63.4 Mpc

Intent Bit: Observing

Weather: Wind is a Moderate Breeze, broken cloud cover, possible rain, temps upper 60s

Primary 0.03 – 0.1Hz: X & Y Axis around 0.03um/s, Z Axis at 0.01um/s

Secondary 0.1 – 0.3Hz: At 0.2um/s

Quick Summary: Locked for 37 hours. A2L Pitch below reference, Yaw up to 0.6, LLO Being down, ran A2L repair script.

Outgoing Operator: TJ