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Table 1

Statistics for both the Earth-based and the Gaia astrometry of each object.

Asteroid RMS (RA) RMS (Dec) Ntot Nuse Nout RMS (AL) RMS (AC) NDR2 NDR2out
[as] [as] [mas] [as]
367 0.42 0.36 2888 2260 18 0.72 0.25 132 4
15 0.66 0.50 2800 1198 67 N/A N/A N/A N/A
1537 0.52 0.48 2914 1989 19 0.74 0.15 147 2
13 724 0.48 0.49 2133 1594 4 2.07 0.54 296 9
2671 0.43 0.39 2903 2596 27 0.98 0.15 88 1
50 278 0.51 0.50 812 689 1 N/A N/A N/A N/A
411 232 0.68 0.55 162 80 0 N/A N/A N/A N/A
29 0.62 0.57 2612 1107 34 N/A N/A N/A N/A
362 0.52 0.45 3115 2128 20 0.70 0.45 340 36
987 0.46 0.35 2914 2088 24 0.83 0.27 180 17
9741 0.53 0.43 2934 1566 13 1.61 0.47 103 1
43 142 0.48 0.45 1759 1194 1 N/A N/A N/A N/A
77424 0.55 0.49 703 520 6 N/A N/A N/A N/A
52 0.51 0.50 3436 2010 34 N/A N/A N/A N/A
124 0.52 0.51 3621 2345 36 0.7 0.22 84 51
627 0.55 0.42 3338 2330 20 0.64 0.15 95 0
8269 0.50 0.44 2074 1129 3 2.3 0.24 184 0
81 049 0.48 0.53 1061 784 3 N/A N/A N/A N/A
14 723 0.48 0.48 1726 1142 1 N/A N/A N/A N/A
445 0.44 0.38 2711 1882 28 0.84 0.20 300 44
1764 0.48 0.45 3296 2395 14 1.00 0.18 255 22
5104 0.46 0.40 2681 1950 14 1.08 0.33 121 3
71 031 0.45 0.44 1048 659 0 N/A N/A N/A N/A

Notes. The columns represent the rms values in terms of RA and Dec for the Earth-based astrometry, the total number of Earth-based astrometric data points obtained from the Minor Planet Center for each asteroid, the number of debiased astrometric data points used in the computation, the number of rejected outliers in the Earth-based data, and the same statistics in terms of ALand AC for the Gaia DR2 astrometry. The values are computed based on residuals corresponding to maximum-likelihood MCMC proposals. Asteroids whose numbers are written in boldface are included in the DR2.

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