**Table 3:** Power spectral fit results. As a model independent measure of the variability we also include the total fractional rms in the 0.001-1 Hz and 1-100 Hz ranges. *FWHM* stands for full-width-at-half-maximum.
Parameter	Obs. 1	Obs. 2
Power law rms^a (%)	5.15 $\pm$ 0.12	7.71 $\pm$ 0.11
Power law index	1.09 $\pm$ 0.01	1.09 $\pm$ 0.01
Lorentzian rms^b (%)	2.99 $\pm$ 0.01	3.4 $\pm$ 0.6
Lorentzian FWHM (%)	0.45 $\pm$ 0.04	100 $\pm$ 30
Lorentzian freq. (Hz)	0 (fixed)	0 (fixed)
QPO rms^c (%)	<1	2.1 $\pm$ 0.4 (3.2 $\sigma$ )^d
QPO FHWM (Hz)	18 (fixed)	18 $\pm$ 6
QPO frequency (Hz)	60 (fixed)	60 $\pm$ 2
rms [0.001-1 Hz] (%)	6.6 $\pm$ 0.02	9.15 $\pm$ 0.02
rms [1-100 Hz] (%)	3.17 $\pm$ 0.10	5.93 $\pm$ 0.06
$\chi^2_{{\rm red}} ({\rm d.o.f.})$	1.07 (209)	1.01 (210)

^a Integrated between 0.001 and 1 Hz;
^b Integrated between 0 and $+\infty$ Hz;
^c Integrated between $-\infty$ and $+\infty$ Hz;
^d Significance is calculated from the power,
not the fractional rms.

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