| Hardness Ratios for VELA X-1, Obsid 1928 | |||||
| Aimpoint | HR1 = (H-M)/(H+M) | HR2 = (M-S)/(M+S) | HR3 = (H-S)/(H+S) | ||
| ACIS-S | 0.762 | 0.845 | 0.978 | ||
| ACIS-I | 0.779 | 0.883 | 0.985 | ||
| Quantiles for VELA X-1, Obsid 1928 | |||||||
| Aimpoint | Quantiles | 25 % | 25 % Error | 50 % | 50 % Error | 75 % | 75 % Error |
| ACIS-S | keV | 1.876 | 6.124 | 3.030 | 0.000 | 4.373 | 0.001 |
| Q-norm | 0.205 | 0.795 | 0.354 | 0.000 | 0.529 | 0.000 | |
| ACIS-I | keV | 1.905 | 0.000 | 3.205 | 0.003 | 4.563 | 0.003 |
| Q-norm | 0.208 | 0.000 | 0.377 | 0.000 | 0.554 | 0.000 | |
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