The shift was dedicated to verify the effect of the NE RH power change performed in the morning (63405).

At 15.45 UTC the ITF again reached LN3. The lock acquisition went well.

The situation after the NE RH thermal transient was unclear. The cavities' power and the sidebands were a little bit lower than the morning and the MICH set was increasing significantly.

Thus, at 17.36 UTC the NE RH power change done in the morning has been reversed: we increased the NE RH power from 4.5 W (12.94 V) to 4.7 W (13.2 V).

The MICH set immediately began to decrease and the sidebands and the cavities' power to grow. We noticed also that the BS offset (used to minimize the CMRF) also decreased, getting very close to 0.

The thermal transient is still ongoing. 

The ITF main signals during the shift are shown in fig.1.