**Table 2:** Approximation of observed brightness profiles of Galactic ridge emission in two energy bands.
Par.	Epoch4		Epoch5
	3-20 keV	10-20 keV	3-20 keV	10-20 keV
b₀	$3.30\pm 0.58$	$3.27\pm1.28$	$3.25\pm 0.71$	$3.26\pm1.78$
Norm^a	$4.53\pm 0.42$	$0.45\pm0.09$	$4.73\pm0.52$	$0.68\pm0.18$

^a Normalization in counts/s/PCU. 1 count/s/PCU corresponds approximately to $1.2\times 10^{-11}$ , $2.3\times 10^{-11}$
and 10^-10 erg/s/cm² in 3-20 keV, 10-20 keV and 20-30 keV energy bands correspondingly.

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