Add "Initial Alignment" vertical bar to running ISC Guardian State Time Series on Lockloss Web's Homepage
One of the more sophisticated patterns of lock losses for which we're looking is to identify whether "we always lose lock once-and-only-once at CARM_ON_TR after an initial alignment."
Upon further investigation, we (Sheila and Jamie) found that this was due to some subordinate guardians not running their down state until the first lock loss after initial alignment: https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=51465
Since then, we've witnessed a few similar lock-losses even after the subordinate node fix.
Along the same lines of pattern finding, it would be nice to add "when has initial alignment been performed" to the running ISC_LOCK Guardian State Time Series on Lockloss Web's Homepage, indicating it with a vertical bar (I'm aware that the existing time series would show when state 7 for initial alignment would be triggered, but the plot is too zoomed out in time and state number to see the difference between 7 [initial alignment] and 10 [down]).
I think initial alignment is rare enough that it would not clutter that ~1 week long time series.
The other reason why I think its important to highlight initial alignment: it's one of the very few tools that operators have in their bag in order to "fix" problems they're finding when troubled with an IFO struggling to get through its locking sequence, so it's interesting to see how often that tool is used.
(Yes, one can just run statistics on how often that state is used, but again, we're looking for interrelated patterns between or from a succession of states beyond initial alignment, so this graph seems like the pre-existing natural place for it.)