Strehl ratios of up to 44% have been achieved, this being a final Strehl
number measured on the science detector. It includes all static aberrations in the system.
Correcting for the calibrated SR of about 75% on the science detector, or maximum SR is about 63%.
The limiting magnitude is currently about mK=7.4. There is hope to improve this by
about 1 mag within the next 12 months.
Note the drop-off between mK≈6 and mK=7.4, which resembles the linear
descend of a typical Shack-Hartmann performance curve, not a predicted PWFS limit.
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Above the tip-tilt jitter is given as RMS in mas. In full closed-loop the jitter RMS is about 20mas.
When only the tip-tilt loop is closed, the jitter is higher by a factor of about 2-3. This difference
is predicted from the fact that without high-order correction the PSF on the pyramid tip has a great FWHM,
hampering the tip-tilt correction.
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