There was an attempt to calibrate the sliders for the H1:SUS-ITMY_R0_OPTICALIGN_ P _OFFSET And also for Yaw.

Robert & Sheila were inside the vacuum chamber over by GV5 holding up a "Calibration sheet". 
I was tasked to move the sliders back an forth.
H1:SUS-ITMY_R0_OPTICALIGN_P_OFFSET has a range from -410 to +410.
I set the ramp time to 10 seconds, and the stepsize to 880.
At 21:14 UTC I typed in the value to send the slider to -440.
I then took a singular step that took the slider from -440 to +440, and then took the slider back to -440 with a singular step.
This was repeated a few times.
I then changed the step size from 880 to 440 and set the slider to -220.
Then stepped from -220 to +220 with a singular step, and back to -220 again.

I then did a similar process again for H1:SUS-ITMY_R0_OPTICALIGN_Y_OFFSET which has a range from -610 to +610.
So the step size this time was 1220.
The slider was moved to -610 at 21:18 UTC. 
The slider was then stepped over to +610 via a singular click of an arrow key. Then back down to -610 again with another click.
This was repeated once again.

The step size was then reduced to 610 , and the slider was moved to -305. We then stepped up from -305 to + 305 with a step.
the slider value was returned back to -305 and the process was repeated.

I assume that Robert was holding a laminated sheet of graphing paper that we could use as an absolute reference for this slider values to calibrate the beam movements.