(Apollo, Kate G, Jeremy B, Stuart A, Matt H)

Quick alog. More detail to come later....or from someone else

We pulled the First contact on SR2. Optic suface still looks the same as last night in terms of not being great in terms of cleanliness (even tried blowing with top gun for 2-3 minutes after FC pulled). The decision was to go ahead and put in bug report about optic.

Particle counts were great throughout, and after unlcoking Stuart did some quick TFs and gave the all clear. ISI south side unlocked and door went on. Process went really quick and well.

For HAM5 Stuart had seen the most subtle suppression of the first peak of the vertical TF, so must have the ever so slightest of rubbing somewhere ( I am sure he has made an alog about this, I am too tired to search for it). Decision was made to see if could find it. So we pulled door back just enough to allow Jeremy and I to get access to the table (everything still inside the cleanroom).We put flange protection on the bottom section of the chamber just in case (better safe than sorry). Locked half the ISI, adjusted M3 OSEMs as requested and looked for rubbing. Couldnt see anything obvious. Ones I was most suspicious about was the top EQ stops of the intermediate mass on the HR side. Blade EQ stops look fine. Ive backed a few things off. Stuart ran quick TFs nd nothing definitive could be seen from the resolution. Ran a couple average higher resolution TF in vertical. Stuart seemed to be happy with what he could tell in the circumstances so door went back on. Time of door off to door on was around 50 mins (TFs took a chunk of time). We did particle counts throughout and all were low...it really seems that having people not moving about in the BSC chambers correlates with low counts in the HAMs even all the way up at HAM5). Stuart has recordings and hopefully will post.

Note: I also noticed that the nuts on the top EQ stops on the upper mass (the ones in the tablecloth) had not been engaged. With the table half unlocked like it was I wasnt able to get to them in a way to engage them, but the stops appear to be a long long way back from the upper mass, so the chances of them vibrating down to start touching I think it low....well for the two that I could see...cant see the ones on the inside of the table)

South door back on with 4 bolts and my fingers crossed that its all good.