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Table 2
Two new EPIC flux limit thresholds (units photons s-1): one conservative (permitting 2−3% flux loss and <1% spectral distortion) and one tolerant (4−6% and 1−1.5% equivalently).
| Instrument | Mode | Frame time | Conservative [s-1] | Tolerant limit [s-1] |
|
|
||||
| Extended Full Frame | 199.1 ms | 0.7 | 1.5 | |
| Full Frame | 73.4 ms | 2 | 4 | |
| EPIC-pn | Large Window | 47.7 ms | 3 | 6 |
| Small Window | 5.7 ms | 25 | 50 | |
|
|
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| Full Frame | 2.6 s | 0.5 | 1 | |
| EPIC-MOS | Large Window | 0.9 s | 1.5 | 3 |
| Small Window | 0.3 s | 4.5 | 9 | |
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