| Hardness Ratios for VELA X-1, Obsid 1927 | |||||
| Aimpoint | HR1 = (H-M)/(H+M) | HR2 = (M-S)/(M+S) | HR3 = (H-S)/(H+S) | ||
| ACIS-S | 0.930 | 0.696 | 0.987 | ||
| ACIS-I | 0.943 | 0.734 | 0.991 | ||
| Quantiles for VELA X-1, Obsid 1927 | |||||||
| Aimpoint | Quantiles | 25 % | 25 % Error | 50 % | 50 % Error | 75 % | 75 % Error |
| ACIS-S | keV | 3.701 | 0.003 | 4.694 | 0.000 | 5.716 | 0.001 |
| Q-norm | 0.442 | 0.000 | 0.571 | 0.000 | 0.703 | 0.000 | |
| ACIS-I | keV | 3.818 | 0.001 | 4.811 | 0.002 | 5.833 | 0.006 |
| Q-norm | 0.457 | 0.000 | 0.586 | 0.000 | 0.719 | 0.001 | |
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