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Table 4

Summary statistics for the 585 million sources in Gaia EDR3 with five-parameter solutions.

Value at G =
Quantity 9–12 13 14 15 16 17 18 19 20 21 Unit
Fraction of sources with 5-param. solution 92.9 97.0 97.1 96.7 93.8 87.5 76.7 49.7 14.5 1.4 %
Median standard uncertainty in α (σα*) at J2016.0 0.014 0.012 0.015 0.022 0.034 0.054 0.094 0.175 0.374 1.006 mas
Median standard uncertainty in δ (σδ) at J2016.0 0.013 0.011 0.013 0.019 0.030 0.049 0.086 0.161 0.335 0.977 mas
Median standard uncertainty in ϖ (σϖ) 0.018 0.015 0.019 0.027 0.042 0.069 0.120 0.221 0.459 1.320 mas
Median standard uncertainty in μα* (σμα*) 0.018 0.016 0.019 0.028 0.044 0.071 0.123 0.229 0.487 1.445 mas yr−1
Median standard uncertainty in μδ (σμδ) 0.016 0.014 0.017 0.024 0.038 0.063 0.111 0.208 0.428 1.401 mas yr−1
Median renormalised unit weight error (RUWE) 1.039 1.023 1.016 1.013 1.012 1.011 1.010 1.010 1.010 1.016
Fraction with significant excess source noise 97.3 59.4 19.2 16.8 13.8 10.6 7.5 5.0 5.0 11.7 %
Median excess source noise (when significant) 0.113 0.089 0.188 0.224 0.285 0.409 0.606 0.976 1.801 3.668 mas
Mean number of visibility periods used 20.9 21.0 20.9 20.8 20.7 20.7 20.7 20.5 19.2 13.1
Mean number of FoV transits used 43.7 43.7 43.6 43.4 43.2 43.2 43.4 42.6 38.7 20.5
Mean number of good CCD observations AL 378 378 377 376 374 374 376 368 334 175
Mean fraction of bad CCD observations AL 1.2 0.4 0.5 0.5 0.5 0.4 0.4 0.4 0.5 0.6 %
Median ipd_gof_harmonic_amplitude 0.018 0.021 0.020 0.020 0.020 0.020 0.020 0.022 0.029 0.073
Mean ipd_frac_multi_peak 1.9 1.5 1.5 1.7 0.9 0.6 0.3 0.2 0.1 0.9 %
Mean ipd_frac_odd_win 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.2 0.8 %

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