Today we engaged again the new DARM filter but, as suggested by Alain, with a slower ramp of 100sec.

GPS: 12.15.03 UTC.

As reported in the attached plots, during the whole ramp the transition went through as the accuracy of the loop gradually improved as expected. 

At the exact moment of the finsih of the ramp (12.16.43 UTC), when the new filter is already totally running an enormous spike in the error signal occurred. This is somehow what has been already partially observed in yesterday's trials, but this time the handoff survived and the ITF didn't unlock.

Still not sure what is the cause of this spike.

Fig.1 : transition between the filters

Fig.2: zoom of the spike occurred at the end of the ramp.