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dan.chen - 15:13 Wednesday 02 July 2025 (34436) Print this report
Violin mode Q estimation

We analyzed the violin mode peaks using approximately 6000 seconds of data starting from GPS time 1433982518 (2025-06-15).

  • For the 1st, 2nd, and 3rd violin mode frequency regions, peaks were searched and fitted individually. The fitting results are attached.

  • During visual inspection of the fitting results, obviously incorrect fittings were marked with “X.”

  • Most of the fitted peaks show Q factors around 1e5. In the 1st mode region, there are three peaks with significantly higher Q values (they look too high...), which are currently under investigation.

  • The mirror temperatures at the time of measurement were as follows:

    • Temperature [K]: (IX, EX, IY, EY) = (92, 49, 42, 58)

  • A PDF showing each fitting result is also attached.

Images attached to this report
Comments to this report:
dan.chen - 6:41 Thursday 03 July 2025 (34438) Print this report
dan.chen - 14:57 Thursday 03 July 2025 (34446) Print this report
dan.chen - 15:03 Thursday 03 July 2025 (34447) Print this report

According to klog32643, the peaks got the very high Q values seem to be violin mode:

  • Peak of 1st No.2: "EYIMP"

  • Peak of 1st No.6: "IYIMP"

  • Peak of 1st No.9: "EXIMP"

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