Jennie W, Jenne D
We need to check the positions of IM1 and 2 as we have now closed all 3 loops for the IMC alignment.
Jenne was windering how our input alignment to the IFI compares to before the vent.
We compared the IM 1 and 2 pitch and yaw positions in manual initial alignment between today and the 12th of December - when we were doing our last locking before the vent.
This comparison is during manual initial alignment which is state 8 in the ISC_LOCK guardian.
The first pic is the 12th December, reference time is 05:21:30 UTC.
The second pic shows today with y cursors at the reference values. The biggest difference is IM2 pitch which is ~120 counts lowewr than it was, the other 2 DOFs are tens of counts off.
I also included IM3 and 4 in my plots but I think we have intentionally changed IM3 since the vent to improve alignment onto IM4 trans and IM4 is controlled.