J. Kissel, R. Savage, E. Goetz, D. Tuyenbayev We've finish the afternoon's worth of full IFO calibration measurements, including broad-band white noise excitation with PCAL into DARM (like LLO aLOG 22191) and true DARM / CARM excitations at given frequencies (like LLO aLOG 23184). We'll analyzed the data in the future, but the times for the injections are as follows: (All times are 2016-01-09 UTC day) 36.7, 331.9, and 1083.7 [Hz] excitations of CARM 02:00:30 to 02:07:00 UTC 36.7, 331.9, and 1083.7 [Hz] excitations of DARM 02:10:00 to 02:17:00 UTC Broad-Band excitation from PCALY 18:19:00 UTC to 18:34:00 UTC Although we plan to analyze the data offline looking at much longer integration times, but .xml templates live here: /ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/PostO1/H1/Measurements/PCAL/ A 2016-01-08_H1DARM_PCALY_BBEXC.xml A 2016-01-08_H1PCAL_TrueDARMCARM_Drive.xml A 2016-01-08_H1PCAL_TrueCARM_Drive.xml A 2016-01-08_H1PCAL_TrueDARM_Drive.xml In addition, we also grabbed 5 minutes of data where we drive the 331.9 [Hz] line in both PCALX and Y, again in CARM and DARM, but *much* harder than normal, such that we can calculate the PCAL's relative calibration with excellent SNR and precision. We've also turned on an X-end PCAL calibration line at 4001.3 @ 40000 [cts], which we intend to leave in place overnight (i.e. we'll accept in the SDF sysetm, and run it over night). This was turned on at roughly 04:02:00 UTC, attached is the screen shot. 331.9 excitation of CARM 03:31:00 UTC to 03:36:00 UTC 331.9 excitation of DARM 03:38:00 UTC to 03:43:00 UTC
Attached is an ASD plot of the DeltaL_external and Xend Pcal Tx PD signals (both calibrated in meters of displacement) showing the temporary injection at 4001.3 Hz.
Note that the frequency isn't quite right in this DTT plot, apparently a DTT issue - the center frequency of the peak changes slightly as a function of the integration time, but not centered around 4001.3 Hz.