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Fig. 3.


Best elliptical limb fit (in black) using the three occultation chords. Blue, cyan, and green lines are the chords from the positive detection obtained at OPD/B&C, FOZ, and OBSPA, respectively. The small red segments at the end of each segment indicate the 1σ uncertainty on each chord extremity, derived from the time uncertainties provided in Table 2. The position of the centre of the fitted ellipse is showed as an X, with values of fc = −0.9 ± 3.1 km and gc = −12.3 ± 2.0 km, and represents the offset with respect to the JPL geocentric ephemeris. The fitted parameters of the ellipse are listed in Table 2.

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