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Table 2

Apparent and absolute magnitudes of OSSOS centaurs, and estimated sizes for various albedos.

#a Rau Δau α flim mr σr mr(1, 1, 0) σ04 σ10 σ16
(au) (au) (deg) (mag) (km) (%) (mag) (mag) (km) (km) (km)
1 13.772 12.793 1.06 23.85 4.79 63 23.35 0.07 11.20 12.06 3.01 7.62 1.91 6.03 1.51
2 17.045 16.131 1.34 24.42 5.81 66 23.98 0.14 10.89 14.24 4.95 9.01 3.13 7.12 2.48
3 25.331 24.406 0.83 24.42 12.80 68 24.01 0.13 9.12 30.92 10.39 19.56 6.57 15.46 5.19
4 17.751 16.758 0.23 24.55 5.66 17 22.66 0.04 9.31 27.02 5.14 17.09 3.25 13.51 2.57
5 19.520 18.526 0.17 24.55 6.86 84 24.36 0.16 10.58 14.98 5.54 9.47 3.51 7.49 2.77
6 12.031 11.029 0.05 24.49 2.58 59 23.92 0.12 12.31 6.70 2.17 4.24 1.37 3.35 1.08
7g 12.115 11.117 0.41 24.49 2.65 68 24.08 0.14 12.47 6.41 2.23 4.05 1.41 3.20 1.11
8 13.565 12.564 0.22 24.49 3.33 80 21.39 0.01 9.25 27.78 2.66 17.57 1.68 13.89 1.33
9 13.564 12.563 0.22 24.49 3.33 69 24.09 0.12 11.95 8.01 2.59 5.07 1.64 4.00 1.30
10 23.497 22.496 0.12 24.66 9.51 40 23.66 0.08 9.05 30.16 8.04 19.07 5.08 15.08 4.02
11 7.434 6.432 1.21 24.42 1.01 43 23.50 0.05 14.20 3.07 0.65 1.94 0.41 1.54 0.33
12 9.179 8.188 1.35 24.45 1.57 88 24.32 0.11 14.05 3.33 1.03 2.11 0.65 1.67 0.52
13 6.232 5.299 3.77 24.85 0.63 27 23.43 0.04 15.10 2.44 0.46 1.54 0.29 1.22 0.23
14g 11.747 10.801 1.76 24.85 2.24 83 24.65 0.10 13.27 4.91 1.46 3.11 0.92 2.46 0.73
15 13.434 12.494 1.60 25.23 2.47 58 24.64 0.09 12.64 6.48 1.83 4.10 1.16 3.24 0.91
16 19.874 18.948 1.16 25.15 5.65 17 23.25 0.04 9.46 27.09 5.15 17.13 3.26 13.55 2.58
17 10.612 9.683 2.20 24.68 2.00 92 24.60 0.17 13.71 4.14 1.58 2.62 1.00 2.07 0.79
18 18.511 17.575 1.18 24.97 5.30 21 23.27 0.04 9.80 23.21 4.41 14.68 2.79 11.61 2.21
19 15.853 14.866 0.35 24.67 4.26 35 23.54 0.06 10.71 14.35 3.33 9.07 2.10 7.17 1.66
20 13.282 12.296 0.43 24.82 2.77 43 23.94 0.07 11.91 8.30 2.07 5.25 1.31 4.15 1.04

Notes. (a) See corresponding name in Table 1. (b)Detection limit set in magnitude, from Bannister et al. (2018) and accounting for the object’s motion rate. (c) Radius corresponding to the detection limit assuming a 16% albedo, meaning the radius of the smallest object is detectable. (d) Radius of the object assuming a 4% albedo. (e)Radius of the object assuming a 10% albedo. (f)Radius of the object assuming a 16% albedo. (g)We stress again that these objects were not tracked and have intrinsic uncertainties much larger than given in the table, though they cannot be quantified.

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