Table 3: The instrumental calibration parameters from the APEC model fit simultaneously to the XIS-0, 1, 2, and 3.
Sensor Relative normalization $N_{\rm c}~\left[10^{18}{\rm cm^{-2}}\right]$ Gain offset [eV]

XIS-0 1(Fix) 0.012(< 0.116) -12.0 (-20.0--6.0)

XIS-1 1.035(1.023-1.047) 0.093(0.014-0.184) -16.0 (-22.5--10.2)

XIS-2 1.019(1.007-1.030) 0.011(<0.116) -9.8 (-16.5--3.1)

XIS-3 1.049(1.038-1.060) 0.000(<0.100) -20.1 (-26.4--14.2)

**Table 3:** The instrumental calibration parameters from the APEC model fit simultaneously to the XIS-0, 1, 2, and 3.
Sensor	Relative normalization	$N_{\rm c}~\left[10^{18}{\rm cm^{-2}}\right]$	Gain offset [eV]
XIS-0	1(Fix)	0.012(< 0.116)	-12.0 (-20.0--6.0)
XIS-1	1.035(1.023-1.047)	0.093(0.014-0.184)	-16.0 (-22.5--10.2)
XIS-2	1.019(1.007-1.030)	0.011(<0.116)	-9.8 (-16.5--3.1)
XIS-3	1.049(1.038-1.060)	0.000(<0.100)	-20.1 (-26.4--14.2)

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