The fraction of the annulus defined by the inner/outer radius r_in/r_out, which is covered by the extraction region of each instrument. For cross-calibration purposes, the measured fluxes must be divided by the numbers in table in order to extrapolate the fluxes to the full annulus.
Cluster r_in r_out XMM-Newton/pn pn XMM-Newton/MOS MOS Chandra/ACIS
arcmin arcmin
A1795
A2029
A2052
A2199
A262
A3112
A3571
A85
Coma
HydraA
arcmin arcmin
A1795 1.5 2.7 0.88 1.00 1.00
A2029 1.5 2.5 0.89 1.00 1.00
A2052 1.7 2.5 0.87 0.98 1.00
A2199 2.0 2.9 0.82 0.93 1.00
A262 1.6 2.7 0.79 0.91 1.00
A3112 1.5 2.9 0.83 0.95 1.00
A3571 0.0 2.1 0.88 0.94 1.00
A85 1.5 3.0 0.85 0.86 0.84
Coma 1.0 5.0 0.93 0.97 0.88
HydraA 1.5 2.7 0.78 0.86 1.00
MKW3S 1.5 2.5 0.89 1.00 1.00MKW3S