Hsiang-Yu, Ansel Neunzert
We notice 23.8092 Hz, the odd harmonics peak of 1.9 Hz comb, show up again on 12/11~12 ,12/14 and 12/16 (Fscan-observing on 12/15 is not working). After raising this, I also check last week's DQ shift record. It also existed on 12/5, 12/6, 12/8 and 12/9. This comb was known before and have LLO alog 66036 and git issue. The attach figure is fscan-observing screenshot on 12/16.
Sorry. It should 11.9 Hz.
It looks like there was a major change in the 11.9 Hz comb on Nov 1, and then a smaller decrease after Nov 14 and an increase on & after Dec 5. No ideas yet for what might be related, just logging the times. Plot attached shows the height of the n=3 line at 35.71389 Hz over time, in normalized average daily Fscan spectra (so the y-axis is in arbitrary units). Second figure shows the same quantity, but tracked over a much longer time period.
