After running calibration sweeps this morning while L1 was out of lock, I also took the opportunity to touch up the OPO temperature with the SQZ_OPO_LR Guardian as I noticed the range gradually decreasing over this lock stretch. This went well, improving CLF_REFL_RF6 a bit and gaining H1 about 6-8Mpc of BNS range.
H1 returned to observing at 18:19 UTC.