We finally accumulated a lock stretch long enough, with good sensitivity to analyze the interferometer response with the Pcal above 1 kHz. Last night was a lock stretch at 40 Mpc, 40 W input power. For the lock stretch, a good time to start the high frequency analysis is at 05:31:00 06-28-2016 UTC, and end time of 06:32:00 06-28-2016 UTC. The x-end Pcal was running at 1000.3 Hz (different than the previous time we made the injection)

Now that there is enough data accumulated, I moved the Pcal injection to 1501.3 Hz and will wait for the next lock stretch with good enough sensitivity, high power, and long duration.

For reference, the end of O1 also made high frequency, long duration injections. We are repeating these measurements. See alog 24843, and the plan from the end of O1 alog 24802.