In last night's lock, the range steadily increased overnight, this looks like it is a result of the cleaning being better tuned for a thermalized IFO than for early in the lock.

We have for a long time had a reference of 165 Mpc on the front wall, which is from a time of OM2 warm.  This was the range reported by H1:CDS-SENSMON_CAL_SNSW_EFFECTIVE_RANGE_MPC, which did not have time dependent calibration corrections applied.  The range with calibration corrections applied at that time was H1:CDS-SENSMON_CLEAN_SNSC_EFFECTIVE_RANGE_MPC, closer to 160 Mpc. 

The attachment shows the spectrum and range comparison of last night to our previous reference time.