Table 1

Observing log of the β Pictoris data, and corresponding atmospheric conditions.

Mode Date Band Density filter Camera DIT NDIT Nexp θstart/θenda ⟨EC⟩b τ0c
(s) (°) (%) (ms)

PSF 2010-03-20 Ks ND-Short S13 0.35 100 8 62.3/63.8 42.3 3.3
Sat. 2010-03-20 Ks S13 0.35 100 120 64.0/83.9 36.9 3.7

PSF 2010-04-10 Ks ND-Short S27 0.15 100 8 60.4/61.2 22.1 7.9
Sat. 2010-04-10 Ks S27 0.15 150 160 62.1/82.2 20.4 7.4



Range of parallactic angles (θ) at the start/end of the observation.


The average coherent energy (K-band) as estimated online by the AO system.


The average coherence time as estimated online by the AO system.

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