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Table 1
Detailed parameters of the end-to-end simulation.
| Atmospheric and telescope parameters | |
| seeing [arcsec] | 0.85 |
| wavefront outer-scale ℒ0 [m] | 25 |
| zenith angle [deg.] | 30 |
| turbulent layers altitude [km] | 0, 1, 10 |
| turbulent layers velocity [m/s] | 12.5, 12.5, 12.5 |
| turbulent layers velocity direction [deg] | 0, 45, 90 |
turbulent layers  profile ratio |
0.2, 0.6, 0.2 |
| telescope diameter [m] | 8 |
| obscuration ratio | 0.14 |
| instrumental jitter rms [mas] | 3 |
| number of independent wavefronts | 100 |
| M1, M2, M3 static figures rms [nm] | 11.9, 11.9, 16.6 |
|
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|
| AO system parameters | |
| linear number of sub-apertures | 40 |
| sensing guide star magnitude | 6 |
| sensing central wavelength [nm] | 650 |
| sensing integration time [ms] | 0.83 |
| loop delay [ms] | 1 |
| RON [e− rms] | 0.5 |
| dark current [e−/s rms] | 2 |
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|
|
| Other instrumental aberrations | |
| static aberrations [nm] | ~36.5 |
| differential aberrations [nm] | ~19 |
| offset pointing [mas] | 0.5 |
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| Imaging parameters | |
| pixel size [mas] | ~8.74 |
| RON [e− rms] | 10 |
| detector dynamic limit | 0.8×105 |
| central wavelength [μm] | 2.17 |
| bandwidth [μm] | 0.3 |
| global telescope⊕instrument transmission | 0.09 |
| sky background [mag/arcsec2] | 13 |
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