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Fig. 9

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Orbit of Linus in the (u, υ) plane, derived from the short-arc astrometric + photometric model. It fits the PISCO dataset around 2459579, namely, close to the mutual occultation events, when the orbit is seen from the edge. The synthetic orbit of Linus (i.e., body 2) is plotted in green, the observed astrometry in yellow, the residuals in red, the shape of (22) in black. The viewing geometry is changing in the course of time; otherwise the orbit is elliptical. The position at the reference epoch T0 is marked by the cross. The contribution χ2 is and nsky = 36.

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