jeffrey.kissel@LIGO.ORG - posted 13:32, Tuesday 13 August 2019 - last comment - 12:05, Tuesday 01 October 2019(51245)
Mid-Run Check-In with High Frequency Roaming Lines and HIGH_FREQ_LINES Gaurdian
S. Karki, J. Kissel
Sudarshan is working on processing the high-frequency roaming PCALX line that has been sweeping through the DARM data above 1 kHz throughout the run. In order to facilitate that processing, and to pick up where Pep left off I report the times at which the sweep restarted during the run thus far, determined by a trend of the requested frequency channel, H1:CAL-PCALX_PCALOSC1_OSC_FREQ. We should consider a modification of the HIGH_FREQ_LINES guardian such that we have a less GUI way to gather this information in the frames.
For now, I give you the dates of the repeat to-date at H1 via ndscope trends and cursoring:
2019-04-01 16:00 UTC Starts at 3001.3 Hz. Start of the run (spends a long time at 3001.3 Hz until bug fix, see aLOG below).
2019-04-15 21:27 UTC Re-start at 3001.3 Hz LHO aLOG 48505
2019-04-19 23:22 UTC Re-start at 3001.3 Hz
2019-04-24 23:51 UTC Re-start at 3001.3 Hz
2019-04-28 19:08 UTC Re-start at 3001.3 Hz
2019-05-05 01:16 UTC Re-start at 3001.3 Hz
2019-05-07 17:22 UTC Re-start at 4001.3 Hz More bug-fixes, no running nominally LHO aLOG 49064
2019-05-15 22:40 UTC Re-start at 4001.3 Hz
2019-05-31 06:54 UTC Re-start at 4001.3 Hz
2019-06-10 17:07 UTC Re-start at 4001.3 Hz
2019-06-18 13:34 UTC Re-start at 4001.3 Hz
2019-06-27 22:08 UTC Re-start at 4001.3 Hz
2019-07-06 03:20 UTC Re-start at 4001.3 Hz
2019-07-15 13:10 UTC Re-start at 4001.3 Hz
2019-07-25 17:16 UTC Re-start at 4001.3 Hz
2019-08-03 11:55 UTC Re-start at 4001.3 Hz
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Comments related to this report
2019-08-18 01:02 UTC Re-start at 4001.3 Hz
More data points! (As usual, trending H1:CAL-PCALX_PCALOSC1_OSC_FREQ, and determining the starting points of the long duration, roaming, high frequency sweep data from PCALX:) 2019-08-25 17:39 UTC Restart at 4001.3 Hz 2019-09-03 01:53 UTC Restart at 4001.3 Hz 2019-09-10 04:39 UTC Restart at 4001.3 Hz 2019-09-22 11:42 UTC Restart at 4001.3 Hz
One final data point for O3A:
2019-10-01 11:54 UTC Restart at 4001.3 Hz
This should allow for three data sets
(1) 2019-09-03 to 2019-09-10
(2) 2019-09-10 to 2019-09-22
(3) 2019-09-22 to 2019-10-01
that are entirely in the regime of the 2019-09-09 model to be used in the high-frequency GPR estimate of the unknown systematic error in the sensing function.