J. Kissel, O. Patane, E. Bonilla

The week of Oct 20-24 2025 was pretty rough on the duty factor for the IFO. Among other things (see excellent summary in LHO:87755), the L and P estimators for H1SUSPR3 and SR3 were installed/updated on Tuesday Oct 21 2025 but had a bug in the filter installation script (LHO:87689) that ended up poorly damping some of those SUS' modes, so the L and P filters were turned OFF on Wednesday Oct 22 (LHO:87659).

These bugs have been fixed on Thursday Oct 23 2025 (LHO:87705), but they've remained off.

Today, by 2025-10-30 16:45:16 UTC (09:45:16 PDT), I've turned the L and P estimators again.

Since Oli had configured all of the updated estimator filters already, accepted them in both SUS' safe and OBSERVE SDF snaps, and left them "off" in the "controlled" way by setting the estimator on/off switch to OFF (H1:SUS-[P,S]R3_M1_EST_[L,P]_SWITCH_NEXT_CHAN = 2), it was trivial to turn them ON by setting H1:SUS-[P,S]R3_M1_EST_[L,P]_SWITCH_NEXT_CHAN = 3, i.e. clicking the "Use ESTIM" button on each estimator's MEDM overview screen.

I've accepted having these estimators ON in both SUS's SAFE and OBSERVE snaps.