As the winds have finally become manageable, H1 has 2-locklosses in a row at beginning (within 2secs) of starting the LOWNOISE_ESD_ETMX state. (this is after h1 being down for most of the day due to winds [which are now lower], AND with high microseism which still is high) Alignment looks good after the afternoon alignment run by Tony toward the end of his shift. DRMI has looked a bit ugly, but PRMI has repeatedly locked (albeit ugly-looking at first) and had ISC_LOCK with smooth sailing....until....LOWNOISE_ESD_ETMX. Will pause at TRANSITION_FROM_ETMX for this next lock attempt.
For Attempt #3, paused at TRANSITION_FROM_ETMX (for about 1min after that state was completed), and then proceeded on to LOWNOISE_ESD_ETMX and had then made it to NLN.
Wondering if we need to revisit the ETMx transition stuff Elenna alog-ed about in Nov -OR- the issues around these states were just a coincidence and more due to our noisy ground motion from microseism.
Attempt #3 was only locked for 14min.
1st attempt after the above lockloss, lost lock while going through the TRANSITION_FROM_ETMX state. (Microseism still high [just under 1um/sec] and winds are fairly calm).