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Table 2

Reduced images characteristics. FWHMs and SRs are averaged over ~200 stars uniformly distributed over the field.

Filter Total FWHM σ FWHM SR σ SR
exposure time

J 2160 s 150 30 2 1
H 2160 s 140 30 5 1.5
K s 2080 s 95 25 14 2

Notes. Corresponding standard deviations are also given.

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