Reports until 10:53, Saturday 19 September 2015
H1 General
travis.sadecki@LIGO.ORG - posted 10:53, Saturday 19 September 2015 - last comment - 15:12, Saturday 19 September 2015(21676)
Lockloss

Lost lock again @ 17:47.  ITMx saturation, but again not obvious enviromental culprits.

Comments related to this report
eleanor.king@LIGO.ORG - 15:12, Saturday 19 September 2015 (21680)

I had a look at both of the last locklosses (UTC 16:40 / GPS 116715542 and UTC 17:14 / GPS 112672005).  The lockloss plots look very similar.  Signals spike in AS_A_RF45, AS_B_RF45, AS_C and ASC-OMC wavefront sensors, and the signals quickly runaway.  The ITMY and ITMX suspensions both saturate, followed by HAM6 ISI, OM1, OM2, MC2, OMC, in order.  Attached is a plot of the first lockloss, showing growing ASC signals.

Images attached to this comment