jim.warner@LIGO.ORG - posted 14:06, Tuesday 20 October 2015 - last comment - 09:52, Friday 23 October 2015(22689)
HAM3 .6hz line still gone
Because there have been some indications the now missing HAM3 .6hz line was electronic, I checked that it was still gone after this morning's power outage. It is, so far. Attached spectra are the GS-13s.
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It looks like the line reappeared for a while on Oct 13. It is visible in the DetChar summary page for HAM3 at the link below https://ldas-jobs.ligo-wa.caltech.edu/~detchar/summary/day/20151013/plots/H1-ISI_ODC_1B8A8B_MEDIAN_RATIO_SPECTROGRAM-1128729617-86400.png I've attached a png of the plot which is linked to above.
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