Apon arrival, I see that the IFO is back up but there are 2 red SDF channels:
One is a somewhat benign LIMIT on the BS OPLEV YAW bank. The other is 2 new filters that are enabled on ITMY_M0_DARM_DAMP_R. I *thought* I saw these being switched a bit via commissioners yesterday during the locking attempts that were taking a while yesterday. There are no alogs about these being turned on. This needs to be addressed by ops/commiss today.
OPERATORS: The SDF and GUARDIAN overview screens are very useful at determining what is out of configuration when attempting to lock. If the GRD overview screen is litup like a "holiday" tree on the SUS and SEI banks, things are wrong and likely inhibiting lock. Likewise on the SDF overview screen. If there are red indications of channel diffs, it might help locking to work through the diffs. Yesterday we had numerous indications on both of these screens that things were not in good states to lock.