A new low blend has been designed and installed on ITMY, Stage 1, longitudinal.

The plot attached shows the improvement on the stages motion. The red curve is the reference (Damped), Blue curve is a measurement with a 250 mHZ blend, green curve is the measurement with the 100 mHz Blend.

L4Cs are the in loop sensors and show a very nice suppression.

T240s are out of loop and also show good suppression, though not as good as the L4Cs. We'll investigate why (sensor noise, misalignment...)

GS13s show some suppression, but less than on Stage1. To be investigated as well.