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Table 12

Overall residuals with respect to Oberon from V03.

Photographic

Satellite [ Δα ∗ ] [ Δδ ] σα σ δ # positions
(mas) (mas) before after

Miranda –32 –15 164 118 315 305
Ariel –7 –12 66 55 363 340
Umbriel –11 –4 73 60 363 335
Titania –1 –8 52 44 363 337

CCD

Miranda 1 6 71 72 1130 897
Ariel 4 12 39 42 1360 1104
Umbriel 3 10 37 51 1350 1113
Titania -10 17 52 61 1365 1214

Notes. Filters described in steps 1 and 4, in this order (see Sect. 4), were applied separately to photographic and CCD data. Columns 1 to 5 have the same meaning as those in Table 9. Columns 6 and 7 show the number of measurements before and after applying the second filter (based on the relative positions of Oberon with respect to those of the other satellites). Ephemeris positions were obtained from DE432+ura111.

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