Table 2: Observations of the five SWAN fields included in the analysis here. CE is the encircled energy reported by the adaptive optics system in real time. The isoplanatic angle $\theta _0$ is that derived by the fit using point sources in the fields (see Sect. 4).
Field Date Filter Exp. time CE $\theta _0$
      (min) (%) ( $^{\prime \prime }$)
SBSF 14 15.12.02 $K_{\rm s}$ 60 62 11.9
SBSF 15 17.12.02 $K_{\rm s}$ 60 66 21.8
SBSF 18 17.12.02 $K_{\rm s}$ 40 68 21.2
SBSF 24 21.03.03 $K_{\rm s}$ 60 36 11.8
SBSF 41 14.06.03 $K_{\rm s}$ 60 53 19.7


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