Reports until 00:07, Friday 20 November 2015
H1 General
edmond.merilh@LIGO.ORG - posted 00:07, Friday 20 November 2015 (23582)
Shift Summary - Evening

TITLE:    Nov 18 DAY Shift 00:00-08:00UTC (04:00-00:00 PDT), all times posted in UTC

STATE Of H1: SUPPORT:

LOCK DURATION: ≈ 4.75

INCOMING OPERATOR: Jeff B

END-OF-SHIFT SUMMARY: Lockloss; 5.5Mag - Japanese bounce mode. First attempt at re-locking made it to DARM_WFS. Second attempt required manual DIFF VCO adjustment. Stopped at CARM_ON_TR to wait for ASC to converge - ETMX Saturations. Third attempt: All three times got good DRMI lock. I’m gonna let this one cook for a bit. EQ band still not really below .1µm/s yet. Dropped slightly below .1µm so proceeded….no luck. Small aftershock is coming. SUCCESS! Handing off to Jeff.

 

ACTIVITY LOG:

03:15 Tour group into the control room

05:00 Playing with cdsutils audio just to hear some sounds I got some Verbal Alarms:

TRANS Injection running  (Nov 20 05:05:00 UTC)
TRANS Injection inactive  (Nov 20 05:05:25 UTC)
TRANS Injection running  (Nov 20 05:08:00 UTC)
TRANS Injection inactive  (Nov 20 05:08:24 UTC)

Hmmmm…

06:10 Lockloss - Earthquake; EQ bands rise to 1µm/s. No significant movement in µSeism

07:44 Jeff B on site. Still no lock and small aftershock is inbound.

08:04 Intention Bit set to Undisturbed