[TVo, Niko, Jenne]

This morning, Hugh and Cheryl found that IOT2 was still sitting on its wheels - its feet hadn't been put down yet.  So, Hugh helped TVo and Niko get the feet set down.  TVo, Niko and I then tweaked up the alignment of the IMC Reft and Trans paths.

Later, Sheila pointed out that likely the lexan cover was still in place in the Refl path.  So, TVo and Niko removed it (WP 7276) and put on the dust cover in its place.  We decided that the lexan probably only needed to be removed for Refl, since that is used for feedback.  The Trans path is just used for triggering and a camera, so it less critical noise-wise.  (Also, we only found one of the dust cover things that goes in place of the lexan.)  We the re-tweaked the Refl path alignment, although it needed very little.  The spot on the IMC Refl camera looks much more normal now, which is also good.

We have tried a few times to close the WFS loops, and they keep diverging even though our hand alignment has brought the error signals close-ish to zero.  So, we checked the phasing of the WFS by driving MC2 in length and maximizing the I phase signal in each quadrant of each WFS. This didn't change much though.

I have to go, and we just got a juicy earthquake (7.8 in Honduras, seismic systems are tripping, and we're just getting the S and P waves, Rayleigh should be here in ~10 min.  Sheila is putting us in the LargeEQ state).  So, we'll come back to this IMC work in the morning, but IMC MC2 Trans Sum is up to a max of 91 now, which is way better than the ~15 we had this afternoon.  I think (but haven't trended to actually check yet) that we should be getting something like 150 counts on MC2 Trans Sum with 2W PSL power.