Table 2: Results of the spectral analysis on the CXB for the MOS cameras. Only single pixel events (PATTERN 0) have been used. The normalization is expressed in photons cm^-2 s^-1 sr^-1 keV^-1 at 3 keV (not corrected for the stray light contribution). The quoted uncertainties are purely statistical errors at the 90% confidence level for a single interesting parameter.
Instrument Photon index Normalization $\chi^{2}_{\nu}$ /d.o.f.

MOS1 1.42 $\pm$ 0.08 2.60 $\pm$ 0.06 1.18/35

MOS2 1.41 $\pm$ 0.08 2.59 $\pm$ 0.06 1.21/35

MOS1+MOS2 1.42 $\pm$ 0.06 2.596 $\pm$ 0.043 1.16/72

**Table 2:** Results of the spectral analysis on the CXB for the MOS cameras. Only single pixel events (PATTERN 0) have been used. The normalization is expressed in photons cm^-2 s^-1 sr^-1 keV^-1 at 3 keV (not corrected for the stray light contribution). The quoted uncertainties are purely statistical errors at the 90% confidence level for a single interesting parameter.
Instrument	Photon index	Normalization	$\chi^{2}_{\nu}$ /d.o.f.
MOS1	1.42 $\pm$ 0.08	2.60 $\pm$ 0.06	1.18/35
MOS2	1.41 $\pm$ 0.08	2.59 $\pm$ 0.06	1.21/35
MOS1+MOS2	1.42 $\pm$ 0.06	2.596 $\pm$ 0.043	1.16/72

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