Today around 17h15 UTC, I have reactivated in CALnoise configuration the lines BS_MIR_permline1, WE_MIR_permline1, NE_MIR_permline1
with the new frequencies 10.8, 12.8 and 14.8 Hz. Those new calibration lines will be used by the new Hrec to get periodically the parameters of the Optical Spring
to be included into the Optical Response Model.

Also, around 13h UTC, I have started two new Hrec processes (HrecOS and HrecSR) that run in parallel to Hrec.

- Hrec:  /virgoApp/Hrec/v5r15 uses the same configuration as in O4 with an Optical Response model that has only one pole

- HrecSR: /virgoApp/Hrec/v6r01  uses a configuration where the Optical Response model contains one simple zero a double pole and no Optical Spring

- HrecOS: /virgoApp/Hrec/v6r01  uses a configuration with same OR model as HrecSR but with also an Optical Spring at low frequency (currently 5 Hz).

Around 17h00 UTC, I have stopped temporarily HrecSR and HrecOS because I suspected that they may be the origin of some data loss in Hrec. I will investigate this tomorrow.