Evan, Stefan

With the winds calming down again, we did some more SR3 alignment work:
- We noticed that for SCR1_Y AS B 36 I is still the best signal. It has
   - less "phase lag", presumably due to a reduced coupling to the BS. This allows us to do a high bandwith loop.
   - a small enough offset that servoing it to zero makes sense for reducing build-up fluctuations.
- Thus we closed the yaw loop with a UGF of 3.3Hz. Engaging it is in the Guardian.
- We tried to play the same game for the pitch loop, with less sucess.
   - all signals have some RF offset.
   - none of the signals seem to have low enough "phase lag" for a high BW loop. We should make sure this phase lag is not due to some broken whitening filter.
- Thus for now we left pitch in the configuration described in alog 15769.

Evan is now also updating the WFS relieve.

We will leave DRMI locked for the night.