Using the pictures recently taken using the Pcal camera system I have determined the Pcal beam spot position. The numbers quoted below are the Pcal beam offset (in mm) from their nominal position of [0,111.6] for upper beam and [0, -111.6] for lower beam.
LHOX: Upper Beam [1.4+/-0.2, 1.3+/-0.2]
Lower Beam [-0.4+/-0.3, 1.3+/-0.3]
LHOY: Upper Beam [-0.6+/-0.2, 1.1+/-0.1]
Lower Beam [-3.1+/-0.1, 1.3+/-0.3]
The pictures for X-end were taken by Travis on 2017/03/28 and the pictures along with the analyzed figures can be found at:
The pictures for Y-end were taken by me on 2017/03/21 and the pictures along with the analyzed figures can be found at:
The last beam spot analysis for Xend can be found at: LHO alog # 29873 and Y-end at: LHO alog # 30105