J. Kissel, C. Vorvick

Calum and Betsy installed the new PR3 baffles (D1300957) yesterday (see LHO aLOG 8619), but only roughed in their alignment with respect to the optic / prisms / wires. Today Cheryl and I went into HAM2, and I aligned the baffles to-the-best-of-my-ability, by-eye, and then tool tightened them to PR3 HLTS structure. My left-right metric was "just covering the edge of the bevel on the optic with the straight portion of the baffles" and my up-down metric was having the "bottom curves of the baffles following the curvature / bevel of the lower half of the optic."  It was certainly a ball-park activity, given that the goodness of alignment depends heavily on one's angle, orientation, and height of viewing. From most face-on views, however, the baffle looks to be baffling the wires and not clipping the optic.

I took many pictures, but did not find out until later that the memory card on the camera was full, so the pictures were not being stored and lost. FFFFUUUUDDDGGEEEE. 
Cheryl, Calum, Betsy, and Kate have graciously volunteered to retake pictures tomorrow before / after they pull of the first contact on all the optics.

We also took B&K hammer transfer functions after securing the baffles (with PR3 freely suspended, and the ISI Locked, and probably with me leaning on the table). I placed the accelerometer in the exact same location and configuration as in LHO aLOG 6014, (4th picture attached) with ACC +X = PR3 -L, ACC +Y = PR3 -T, and ACC +Z = PR3 +V, in the upper left corner of the cage on the HR face, "front" of the cage. The X impacts with the hammer were just below the accelerometer, on the HR face. The Y impacts were on that same strut / corner, at the same height as the accelerometer, on the -T face of the cage, in the +T direction. Comparing these results with the previous results taken before the baffles were installed -- by-eye they look roughly equivalent. The resident LHO expert of post-processing the data is off to LLO for a few days, so we'll post a comparison next week (or I can ask Calum / Stuart tomorrow, we'll see.)

For now, the saved templates live only on the laptop, and live in
C:\Users\ligo\Desktop\SUS Hammer Test\PR3
and are called
SimpleHammerDisplay3-PR3Baffle-ISIlocked-Ximpact.pls
SimpleHammerDisplay3-PR3Baffle-ISIlocked-Yimpact.pls