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Table 3.

Revised astrometry of the three objects with the astrometry rms, the centroid errors, and the pixel sizes.

ULAS0926 at MJD 59971.54
α, δ (deg) 141.522478+8.587854
rmsX, Y (pix) 0.313, 0.187
errX, Y (pix) 0.061, 0.063
Scale (mas pix−1) 254.92 (OSIRIS+)
μα cos δ,  δ (mas yr−1) −76 ± 9, −42 ± 8

ULAS1319 at MJD 59725.91

α, δ (deg) 199.932017+12.150141
rmsX, Y (pix) 0.619, 0.332
errX, Y (pix) 0.053, 0.065
Scale (mas pix−1) 258.30
μα cos δ,  δ (mas yr−1) −85 ± 13, 16 ± 9

WISE2217 at MJD 59826.03

α, δ (deg) 334.278402−14.912140
rmsX, Y (pix) 0.375, 0.396
errX, Y (pix) 0.126, 0.152
Scale (mas pix−1) 259.25
μα cos δ,  δ (mas yr−1) 1257 ± 44, −986 ± 44

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