Dripta B. & Tony S. were able to complete the full measurment of the X End PCAL this afternoon.
The beam positions at the RX sensor beam spot position looked good, see photo below.
Things to Note about this measurment are:
The Phones were not working at the End X station. None of them, so I had to call the operator via my cell phone while outside the building.
We used PS4 for this measurment this afternoon.
Neither of us noticed that the OFS was railed at -7.4V for our first 3 measurments and then it suddenly went up to -3.88V. We looked back at some historical data to find that the -3.88V is indeed the desired value for the OFS PD.
This forced us to start the measurments over again. We are not sure why the OFS was railed to -7.4V, nor are we sure why it stopped when I swapped the RX Sphere for PS4.
Data analysis is still ongoing.
This measurement actually happened on the 15th, but the analysis was done on the 22nd.
The analysis report for LHO End X measurment using PS4 as the Working standard or the sphere that we take down to the end station instead of PS3.
We also happened to change the Gold Standard, so there is alot of changes happening at once. But as more data comes in we will remove the old data from these plots.
But the Mean value for TxPD Force Coefficient is 7.921285e-13 N/ct
and the Mean Value for the RxPD Force Coefficient is 6.230834e-13 N/ct