This come down to me cutting an inch from my backsight but I should have cut 2.  Maybe you put the 15mm & 9mm together and come up with 1".  Yes, my instrument was 1" higher than I thought putting my results 1" lower than reality.  I'll give the show and tell to anyone who cares.  My apologies to anyone fretting over this.
However, we are still 9mm high which is closer than 15 but still a lot and maybe too much for HEPI.  We are now waiting to hear from ISC to learn what they can tolerate.  See aLogs 4223 & 4242 if you need.

Sadly, the 2" lens on the QPD sled for HAM3 was scratched during the transport from the lab to the LVEA. When we took the sled assembly out of the bag and unwrapped, under a strong lighting it was clear that the center of 2" lens surface that faces outside was scratched, most probably by the aluminum foil that was used to cover the entire assembly. We couldn't blow it off using nitrogen gun, so it's not just particulates.

We have more of these lenses and we'll have one class-A-ed ASAP so the impact on schedule is minimal, but next time we transport any super polished optics, I'll make sure that I first cover it using Vectra Alpha 10 wipe for protection befure wrapping it in the foil. The reason why it was not done was because I couldn't find Vectra wipes in the lab, but it seems like no wipe = no transport.

I'm going to run these TFs from home tonight.

The chamber cleanroom was moved over BSC5 and bolts were pulled from the doors and the dome. The crew was pulled off t work on BSC8 de-install.

The four H1 PSL safe.snap files were committed to the userapps SVN repository under userapps/trunk/psl/h1/burtfiles as

iss/safe.snap, fss/safe.snap, pmc/safe.sna and dbb/safe.snap

The corresponding safe.snap files in the target area were made to be symbolic links to these files.

The ODC group (Ryan F) requested some PSL ODC channels have non-zero default settings. These were added to the running system, and the ODC channel blocks were added to the safe.snap flies for ISS, FSS and PMC.

See the attached photo of the SW corning of BSC1 where there is a temp reader of some sort.  I must relocate this as it is where the HEPI plumbing runs.  The Installation Manager said go ahead so I moved it to the other side of the viewports on the same flange still on the SW corner.  If any one cares about how good a job I did of applying the proper amount of pressure etc of placing this, please give it a look over.  However, if you try to look at data you likely won't see much as there is no cable connected to the satellite box downstream.

Mark B.

Picking up where I left off on Friday, aiming towards getting TFs.

We have put all of the H2 CDS code into the cds_user_apps SVN repository. I have created a One Arm Tag to archive the code base for H2 as it was at the end of the OAT run. H2 BSC6 commissioners may now transition the code away from the OAT configuration.

- Cheryl, Deepak, Luke

The 3" steering mirror behind PR2 was installed in HAM3.  The 3" black glass that sits behind the mirror in it's mount turned out to be more like 2.8", so the set screw is almost fully through it's threaded hole, and does firmly hold the black glass in place.  The 3" optic had the First Contact removed from the back surface, and there appeared to be possible FC left  around the very edge in a number of places.  I wiped the edge with acetone, and some features were removed, but most remained, and after looking at it with Betsy, it seemed like the features could be the edge of the AR coating.  I put the optic in it's mount, with the HR side still covered with FC, and we installed it into HAM3.

Work installing into HAM3 will continue on Monday.

* Black glasses and clips used for all ISC mirrors were found and are ready to be installed (but IO black glasses are not yet ready). As noted before, this can be done later.

* Sled is ready as noted before.

* Picomotor interface and the manual driver are ready so we can test picomotors in chamber once they're installed.

* Ditto for QPD.

The final distributed piping on HAM4 was completed today.  The distributed tubing from BSC8 has been reinstalled on BSC1.  And a little more of the temporary tubing was removed.
The main supply & return lines are what remains.

Due to concerns of improper strains placed on the glass via the metal secondary prism, the prisms were removed from the MC1 and MC3 optic barrels.  These will be reglued on with a new curing procedure shortly.  The debonding process, E1200821, took ~3-4 hours of continual "baby sitting" by me and Gerardo to keep the prism joint wet with acetone.

JimW MitchellR & GregG

The crew got a portion of the Sensors installed on to the ISI.  These included the Trilliums and the Vertical L4-Cs & 1 Horizontal GS-13.  

I put a dust monitor in the clean room over the ISI. It was set to location number 2 in the LVEA. It is in there but does not seem to be running correctly.

Mark Barton

Travis reports that the OSEMs on the BSFM02 are adjusted so I'll be trying to take TFs. The Matlab scripts are a bit old, so it may be more debugging than taking data to begin with.

We'll be using the BSC8 cables/controls/models to test BSFM02, so the FMy MEDM settings will be changed for this testing phase.

From initial alignment data, we know the following:

Positive offset in PIT (H2:SUS-ETMY_M0_OFFSET_P and H2:SUS-ITMY_M0_OFFSET_P) will tilt the mirros such that the reflected beam off of the mirrors will go down.

Positive offset in YAW will tilt the mirrors such that the reflected beam off of the mirrors will go toward the inside of L.

That is, the upper stage of ITM looks like the mirror image of the ETM. Why is this the case? I thought that they are identical.

Also, I think oplev sign is somehow wrong. It's not consistent with initial alignment data.

FYI, the sign of the things in initial alignment was figured out by:

First using baffle diodes to figure out the sign of the TMS to figure out the TMS sign, and make the first beam hit the center of the ITM.

Then using ETMY cage and CCD camera, make the reflected beam from the ITM hit the cage bars to figure out the sign of ITM.

Then move offset of ETMY so that the beam comes back to the table, then move TMS and repeat, to see if ETMY sign is the same as TMS (it is).

As you can see, there is not much ambiguity there.