Rahul K, TJ S

The CRS was locked, the ISI and HEPI were locked, and the rest of the suspensions were unlocked for our B&K hammer tests. This allowed us to test out the modes of the baffle panels on the CRS, but we don't have a great idea of the operating state of the CRS structure.

Accelerometer location - On the top of CRS Shroud Mount Assembly (D2500083) using the 8-32 screw to secure the mounting bracket and with the shroud in place. Acc. dofs = IFO dofs.

Meas 1 - Hit on top of the -X+Y baffle bracket in the -Y direction
Meas 2 - Hit -X direction on same baffle bracket
Meas 3 - Hit -Z direction on same baffle bracket

Meas 4 - Hitting on the bottom corner of the baseplate that slightly hung off of the optical table in -Y direction
Meas 5 - Hit in the same area in +X
Meas 6 - Hit in the same area in +Z

Peaks of note are at 64, 130, 169Hz. None of these peaks seem to be show stoppers, but good to note.