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Table 1

First order approximation photocenters.

Filter
(pixel) (pixel) (mas) (mas)

J 903.16 1058.36 3.4 2.2
H 897.10 1062.59 2.5 3.0
K S 882.39 1059.33 1.5 1.3

Notes. First order estimation of and , and the uncertainties involved in mas as suggested by ellipse fitting on the J, H, and KS bands. 1 pixel equals 10 mas.

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