1. Calculation of and. Wanted independent method to calculate calibration factors to use in search codes. XS, Jolien Creighton, Mike Landry

2. At the frequency of the calibration line:

3. -For S2 this is, in fact, wrong. The cal lines are not injected into DARM -Things don’t change much:

4. Implemented in LAL in ComputeCalibrationFactors.c in packages/tools There is a test program, ComputeCalibrationFactorsTest, built with make test that is a driver for this function. It outputs: Real and imaginary parts of

5. Factors given by ComputeCalibrationFactorsTest vs. official factors official real imaginary

6. Can compute factors for longer times (by match filtering longer chunks of DARM_CTRL, AS_Q and EXC): Real 60s (red)Real 300s (blue) Average magnitude of imaginary part vs. length of time used

7. Can find errors in reference calibration functions v2 Cal v3 Cal