Reports until 15:53, Saturday 07 November 2015
H1 General
edmond.merilh@LIGO.ORG - posted 15:53, Saturday 07 November 2015 (23196)
Shift Summary - DAY

TITLE:    Nov 6 DAY Shift 16:00-00:00UTC (08:00-04:00 PDT), all times posted in UTC

STATE Of H1: Observing

SUPPORT: Robert, Sudarshan

LOCK DURATION: ≈6.5 hrs (this shift)

INCOMING OPERATOR: Nutsinee

END-OF-SHIFT SUMMARY: IFO Locked most of shift. Robert on site doing some measurements concerning HVAC activity. Brief period of Lockloss for about 1.5 hours, reason unknown. Re-locking was only hindered by ISS second loop engaging. Sudarshan was on deck to help with that and direct me to an aLog entry to add to Ops Wiki. Microseism extends into .8um/s  territory. Handing off to Nutsinee.

 

ACTIVITY LOG:

16:10 Large wobble in ASC and Tidal that lasted for only ≈2 minutes. Perhaps due to the 4.9 EQ near Venezuela. Terramon issued an 08:23PST R-Wave of .35microns. This didn’t show in 30-100mHz bands and it was below the microseismicity but the timing was nearly coincidental.

18:55  Robert is going to be doing some HVAC variations while IFO is in Science Mode. See aLog #22532

20:30  A Critical Dust Alarm keeps occurring from the vacuum prep lab.

21:10  LockLoss

22:06  Sudarshan helped to troubleshoot ENGAGE_ISS_SECOND_LOOP step with the help of a Kiwamu aLog which has now been added into the Operators Troubleshooting Wiki.

22:09 IFO relocked and Intent bit set to Oberving