Difference between revisions of "GOES Flux vs STIX counts"

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The GOES flux of a flare is estimated using
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The GOES flux of a flare is estimated using<br>
flux=10^(p0+p1*x+p2**x^2+p3*x^3),  
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with x=log10(stix_peak_counts)/r^2
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flux=10^(p0+p1*x+p2**x^2+p3*x^3), <br>
where p0, p1, p2 are the parameters from the polynomial curve  fit,  
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peak_counts is the STIX QL LC peak counts and r is the distance between the Sun and solar orbiter in units of au.
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with x=log10(stix_peak_counts)/r^2<br>
 +
 
 +
where p0, p1, p2 are the parameters from the polynomial curve  fit, peak_counts is the STIX QL LC peak counts and r is the distance between the Sun and solar orbiter in units of au.

Revision as of 10:38, 15 January 2022

Fig. 1: Scatter plot of STIX counts versus GOES flux in log-log scale. STIX counts are divided by the squared distances between Solar Orbiter and the Sun. 1045 flares with look-angles from the Earth smaller than 90 degrees are selected.
File:Goes-stix-flux-fit.png
Fig. 2 A profile of the histogram and its fit of the quadratic function.


The GOES flux of a flare is estimated using

flux=10^(p0+p1*x+p2**x^2+p3*x^3),

with x=log10(stix_peak_counts)/r^2

where p0, p1, p2 are the parameters from the polynomial curve fit, peak_counts is the STIX QL LC peak counts and r is the distance between the Sun and solar orbiter in units of au.