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Table 3
COFFEE: error budget for the estimation of an aberration upstream of the coronagraph on BOA.
| Error budget | |
|
|
|
| Noise | ϵnoise = 0.9 nm rms |
| Model mismatch | ϵmodel = 6.0 nm rms |
| Error on diversity | ϵdiv = 2.0 nm rms |
| Resolved object | ϵobj = 0.7 nm rms |
| Residual turbulence | ϵturb = 1.2 nm rms |
| Aliasing | ϵaliasing = 18.3 nm rms |
|
|
|
| Total error |  nm rms |
| Total error per Zernike mode | ϵ′ = 1.6 nm rms per estimated Zernike mode |
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