I'm checking out the data this morning, running armloss_AS_calc.py using the parameters Yuki used here.

I made the following changes to scripts (measurement script and calculator script)

• Included the 'hour' of the run in the armloss_dcrefl_* script. This way, we can run more than once a day without overwriting data.
• Changed the calculator script to loop over all iterations of locked/misaligned states, and calculate the loss for adjacent measurements.
  • That is, the measurement script will make a measurement with the arm locked, then with it misaligned, and repeat that N times
  • The calculator now finds the loss for the nth iteration using *_n_locked and *_n_misaligned, and finds N separate loss measurements
  • The dark signal is also computed N times, though all of the dark measurements are made before running the arm scripts, so they could be all integrated together.
  • All of these are saved in the same directory that the data was grabbed from.

I repeated the 'dark' measurements, because I need 20 files to run the script and the measurements before had the window on the scope set larger than the integration time in the script, so it was padded with bad values that were influencing the calculation.

On running the script again, I'm getting negative values for the loss. I removed the beamstops from the PDs, and re-centered the beams on the PDs to repeat the YARM measurements.