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Table 3
Key parameters of the ART-XC mirror systems at 8.1 keV.
| System # | MS1 | MS2 | MS3 | MS4 | MS5 | MS6 | MS7 | MS8 |
|---|---|---|---|---|---|---|---|---|
| HPD on axis, arcsec | 29.7 | 31.8 | 32.2 | 33.7 | 30.3 | 40.3 | 33.0 | 34.8 |
| W90 on axis, arcsec | 94.1 | 108.6 | 101.1 | 121.9 | 124.7 | 139.2 | 115.9 | 117.4 |
| On-axis effective area, cm2 | 71 | 69 | 67 | 65.2 | 64 | 66 | 67 | 66.6 |
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