Table 2
MIRI imager PSF metrics.
Data (EE normalized to 5 arcsec) | WebbPSF (EE normalized to 5 arcsec) | Data / WebbPSF | ||||
---|---|---|---|---|---|---|
Filter | FWHM | EE within 1st | FWHM | EE within 1st | FWHM | EE |
(arcsec) | dark Airy ring | (arcsec) | dark Airy ring | ratios | ratios | |
F560W | 0.207 | 55–63% | 0.182 | 60.9% | 1.14 | 0.9–1.03 |
F770W | 0.269 | 62% | 0.260 | 65.3% | 1.03 | 0.95 |
F1000W | 0.328 | 71% | 0.321 | 70.9% | 1.02 | 1 |
F1130W | 0.375 | 73% | 0.368 | 72.7% | 1.02 | 1 |
F1280W | 0.420 | 65% | 0.412 | 72.8% | 1.02 | 0.89 |
F1500W | 0.488 | 77% | 0.483 | 73.5% | 1.01 | 1.05 |
F1800W | 0.591 | 74% | 0.580 | 74.4% | 1.02 | 0.99 |
F2100W | 0.674 | 72% | 0.665 | 75.1% | 1.01 | 0.96 |
F2550W | 0.803 | 68% | 0.812 | 76.1% | 0.98 | 0.89 |
Notes. MIRI imager PSF metrics, measured on commissioning data (2nd and 3rd columns), and WebbPSF models (4th and 5th columns). The last two columns tabulate FWHM and EEs (Encircled energies) ratios between data and models. FWHM are average values in x and y directions from fitting a bi-dimensional Airy function to the images.
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