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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