Table 2: Best-fit values for the available observations during the pre-outburst flare, where the CRSF energy is measured at a higher position, for the sum of the observations during the flare, and for one observation close to the maximum of the main outburst. L is the luminosity in units of $10^{37}~{\rm erg~s^{-1}}\xspace$ in the $5{-}50~{\rm keV}\xspace$ range. Errors are $90\%$ confidence for one parameter of interest ( $\chi^{2}_{\min}+2.7$).
Obs. ID $E_{{\rm cyc}}({\rm keV}\xspace)$ $\sigma({\rm keV}\xspace)$ $\tau$ $E_{{\rm fold}}({\rm keV}\xspace)$ $\alpha$ MJD start Exp. $({\rm ks}\xspace)$ L $\chi^{2}_{{\rm red}}/{\rm d.o.f.}\xspace$
91086-01-03-01 $\rm 48.3^{+1.1}_{-1.0}$ $6.4^{\rm +1.0}_{-1.0}$ $0.27^{\rm +0.03}_{-0.03}$ $18.2^{\rm +0.4}_{-0.4}$ $0.73^{\rm +0.02}_{-0.02}$ 53 610.599 1.152 0.85 1.19/170
91086-01-03-02 $50.2^{\rm +1.8}_{-1.6}$ $8.7^{\rm +1.4}_{-1.3}$ $0.57^{\rm +0.08}_{-0.08}$ $18.8^{\rm +1.0}_{-1.0}$ $0.91^{\rm +0.04}_{-0.04}$ 53 610.665 2.208 0.45 0.88/170
91086-01-03-03 $52.0^{\rm +1.6}_{-1.4}$ $10.8^{\rm +1.3}_{-1.1}$ $0.53^{\rm +0.06}_{-0.06}$ $19.2^{\rm +0.8}_{-0.7}$ $0.83^{\rm +0.03}_{-0.03}$ 53 610.729 2.560 0.57 0.90/170
sum $49.9^{\rm +0.8}_{-0.8}$ $8.6^{\rm +0.7}_{-0.7}$ $0.40^{\rm +0.03}_{-0.03}$ $18.3^{\rm +0.4}_{-0.4}$ $0.77^{\rm +0.02}_{-0.02}$ 53 610.599 5.920 0.66 1.18/220
91085-01-01-03 $46.1^{\rm +0.5}_{-0.5}$ $10.1^{\rm +0.5}_{-0.5}$ $0.47^{\rm +0.03}_{-0.02}$ $18.0^{\rm +0.4}_{-0.3}$ $0.59^{\rm +0.02}_{-0.02}$ 53 614.7 12.352 0.75 1.19/214
  102.5 $8.4^{\rm +2.2}_{-1.9}$ $1.0^{\rm +0.4}_{-0.2}$ (1st harmonic)            


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