jeffrey.kissel@LIGO.ORG - posted 15:47, Monday 17 October 2016 - last comment - 16:17, Monday 17 October 2016(30597)
PCALX Roaming Calibration Line Frequency Changed to 2001.3 Hz
J. Kissel for S. Karki I've changed the > 1 kHz PCALX calibration line frequency, a.k.a. the "long duration sweep" line, from 2501.3 to 2001.3 Hz. Recall this started moving again on Oct 6th (see LHO aLOG 30269) I report the progress towards completing the sweep below. Frequency Planned Amplitude Planned Duration Actual Amplitude Start Time Stop Time Achieved Duration (Hz) (ct) (hh:mm) (ct) (UTC) (UTC) (hh:mm) --------------------------------------------------------------------------------------------------------------------------------------------------------- 1001.3 35k 02:00 1501.3 35k 02:00 2001.3 35k 02:00 39322.0 Oct 17 2016 21:22:03 UTC 2501.3 35k 05:00 39322.0 Oct 12 2016 03:20:41 UTC Oct 17 2016 21:22:03 UTC days 3001.3 35k 05:00 39322.0 Oct 06 2016 18:39:26 UTC Oct 12 2016 03:20:41 UTC days 3501.3 35k 05:00 39322.0 Jul 06 2016 18:56:13 UTC Oct 06 2016 18:39:26 UTC months 4001.3 40k 10:00 4301.3 40k 10:00 4501.3 40k 10:00 4801.3 40k 10:00 5001.3 40k 10:00
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I had changed the pcal y line heights yesterday around 10 am local for a contrast defect test and have only now reverted them back to their old values.
Saying more words for Evan: He changed the 7.9 Hz and 1083.7 Hz line heights, by adjusting the H1:CAL-PCALY_PCALOSC4_OSC_[SIN,COS]GAIN and H1:CAL-PCALY_PCALOSC3_OSC_[SIN,COS]GAIN (respectively) oscillator gains. They we changed starting at Oct 16 2016 17:27 UTC and restored by Oct 17 2016 22:23 UTC. So any undisturbed time processed from this period should be excised from the collection of data for the 2501.3 Hz analysis for fear of confusion on the optical gain. Thus the new table of times for valid analysis is Frequency Planned Amplitude Planned Duration Actual Amplitude Start Time Stop Time Achieved Duration (Hz) (ct) (hh:mm) (ct) (UTC) (UTC) (hh:mm) --------------------------------------------------------------------------------------------------------------------------------------------------------- 1001.3 35k 02:00 1501.3 35k 02:00 2001.3 35k 02:00 39322.0 Oct 17 2016 22:24:00 UTC 2501.3 35k 05:00 39322.0 Oct 12 2016 03:20:41 UTC Oct 16 2016 17:27:00 UTC days 3001.3 35k 05:00 39322.0 Oct 06 2016 18:39:26 UTC Oct 12 2016 03:20:41 UTC days 3501.3 35k 05:00 39322.0 Jul 06 2016 18:56:13 UTC Oct 06 2016 18:39:26 UTC months 4001.3 40k 10:00 4301.3 40k 10:00 4501.3 40k 10:00 4801.3 40k 10:00 5001.3 40k 10:00
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