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I am not sure of the results I have found for the quality factor of this bode plot.

Bode plot I am using the \$Q=\frac{\omega}{\Delta}\$ formula but found incoherent results (\$Q=3865\$).

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Hertz or radians per second doesn't numerically affect Q just in case anyone calls me for working unitless: -

Lower 3dB point appears to be about 1884. Upper 3dB point appears to be 18840. Delta (for the approximate calculation of Q) is 18840 - 1884 = 16956. This means Q is approximately 6280/16956 = 0.37.

I don't know how you got 3865?

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