12.1 Introduction

The data fields of the main table of the Gaia Catalogue are described in 14.1.1. A summary of statistics and plots by Gaia Analysis Tool (GAT) on these fields for the 1 692 919 135 sources is presented in Table 12.1 and a selection of figures also from GAT is included in the following pages.

Table 12.1: The following table contains the minimum and maximum values, mean and standard deviation for numeric Catalogue fields which are not used as identifier. AL (resp. AC) designate the Gaia along-scan (resp. across-scan) measurements.
Field name Null values Minimum Mean Maximum Std. dev.
random_index 0 0.0000 846459566.9994 1692919134.0000 488703659.1526
ref_epoch 0 2015.5000 2015.5000 2015.5000 0.0000
ra 0 3.8206E-07 227.7908 360.0000 78.6795
ra_error 0 0.0056 1.6185 99.9726 4.2069
dec 0 -89.9929 -18.0945 89.9901 37.1469
dec_error 0 0.0061 1.4076 99.9372 3.5872
parallax 361009408 -1856.5756 0.3692 1851.8821 1.2569
parallax_error 361009408 0.0091 0.5293 6.1840 0.4608
parallax_over_error 361009408 -1697.5359 2.7025 11292.6377 10.5191
pmra 361009408 -4339.8906 -2.5542 6765.9947 6.0267
pmra_error 361009408 0.0110 0.9180 5.4324 0.8071
pmdec 361009408 -5817.8560 -2.9876 10362.5422 6.0871
pmdec_error 361009408 0.0114 0.8378 5.4215 0.7495
ra_dec_corr 0 -1.0000 0.1615 1.0000 0.3978
ra_parallax_corr 361009408 -0.9994 -0.0362 0.9992 0.2477
ra_pmra_corr 361009408 -0.9978 -0.2180 0.9956 0.2484
ra_pmdec_corr 361009408 -0.9966 -0.1042 0.9967 0.2576
dec_parallax_corr 361009408 -0.9992 -0.0856 0.9981 0.2973
dec_pmra_corr 361009408 -0.9953 -0.0720 0.9942 0.2400
dec_pmdec_corr 361009408 -0.9982 -0.2591 0.9973 0.2917
parallax_pmra_corr 361009408 -0.9964 -0.0653 0.9947 0.2366
parallax_pmdec_corr 361009408 -0.9969 0.0865 0.9919 0.2314
pmra_pmdec_corr 361009408 -0.9965 0.1099 0.9980 0.3033
astrometric_n_obs_al 0 10.0000 182.1405 1202.0000 102.2751
astrometric_n_obs_ac 0 0.0000 1.0503 1178.0000 16.2138
astrometric_n_good_obs_al 0 9.0000 181.0278 1190.0000 101.7348
astrometric_n_bad_obs_al 0 0.0000 1.1126 246.0000 1.7179
astrometric_gof_al 0 -16.5247 2.7810 1970.0065 10.8896
astrometric_chi_2_al 0 1.3855 511.0514 35243956.0000 18399.0175
astrometric_excess_noise 0 0.0000 1.0493 20.0000 1.8447
astrometric_excess_noise_sig 0 0.0000 12.0784 302224.8508 470.2873
astrometric_params_solved 0 3.0000 25.0291 31.0000 11.4688
astrometric_weight_al 0 0.0009 2.5659 754.8066 19.3990
astrometric_pseudo_colour 364739151 -2.1428 1.4543 5.9426 0.1706
astrometric_pseudo_colour_error 364739151 0.0014 0.1003 0.8936 0.0829
mean_varpi_factor_al 0 -0.7208 0.0582 0.7190 0.1584
astrometric_matched_observations 0 5.0000 20.9521 137.0000 11.6334
visibility_periods_used 0 1.0000 10.8469 22.0000 3.7887
astrometric_sigma_5d_max 0 0.0207 9239.3108 4460992512.0000 709729.9863
frame_rotator_object_type 0 0.0000 0.0009 3.0000 0.0511
matched_observations 0 5.0000 23.0002 361.0000 13.0364
phot_g_n_obs 0 10.0000 194.7739 2311.0000 112.3718
phot_g_mean_flux 0 8.0366 5882.4160 3911039555.3980 756267.2962
phot_g_mean_flux_error 0 0.2747 8.4661 94503851.2304 6522.5546
phot_g_mean_flux_over_error 0 0.1234 425.5035 16087.6260 660.5750
phot_g_mean_mag 0 1.7076 19.2559 23.4257 1.5691
phot_bp_n_obs 0 0.0000 15.6732 322.0000 13.1704
phot_bp_mean_flux 310954380 1.0234 3225.4073 883743136.1527 322501.1017
phot_bp_mean_flux_error 310954380 0.0000 24.7391 147536656.6019 10693.8767
phot_bp_mean_flux_over_error 310954380 0.0006 54.4378 74753552.0000 4105.2240
phot_bp_mean_mag 310954380 2.9856 19.5468 25.3263 1.5551
phot_rp_n_obs 0 0.0000 16.5893 296.0000 13.4828
phot_rp_mean_flux 309367422 1.1265 5681.9662 1444134724.0163 515792.0336
phot_rp_mean_flux_error 309367422 0.0000 33.5109 119489697.4720 9530.4458
phot_rp_mean_flux_over_error 309367422 0.0077 101.7105 73425904.0000 4970.9385
phot_rp_mean_mag 309367422 1.8629 18.0366 24.6326 1.5240
phot_bp_rp_excess_factor 313630486 0.0158 1.6297 5.0000 0.5343
phot_proc_mode 0 0.0000 0.2996 2.0000 0.6840
bp_rp 313630486 -5.4892 1.5122 9.8001 0.5791
bp_g 310954380 -2.0739 0.5130 7.7959 0.4603
g_rp 309367422 -4.1577 0.9990 3.6509 0.3521
radial_velocity 1685694504 -999.2826 -3.1381 970.5776 47.4439
radial_velocity_error 1685694504 0.1100 1.8726 19.9998 2.4501
rv_nb_transits 0 0.0000 0.0357 201.0000 0.6399
rv_template_teff 1685694504 3600.0000 5146.1164 6750.0000 712.3286
rv_template_logg 1685694504 -0.5000 3.4710 5.0000 0.6722
rv_template_fe_h 1685694504 -5.0000 -0.0887 1.0000 0.3381
l 0 0.0000 185.7048 360.0000 134.2095
b 0 -89.9937 -1.2851 89.9880 15.6654
ecl_lon 0 0.0000 232.4978 360.0000 78.9921
ecl_lat 0 -89.9995 -6.3363 89.9901 37.1484
priam_flags 1531421540 100001.0000 100872.2125 132212.0000 3641.9068
teff_val 1531421540 3229.0000 4815.7152 9803.0000 751.2170
teff_percentile_lower 1531421540 3098.0000 4619.2372 9669.7500 751.3344
teff_percentile_upper 1531421540 3287.0000 5111.9513 9985.0000 778.5718
a_g_val 1605185463 0.0000 0.8725 3.3650 0.7419
a_g_percentile_lower 1605185463 0.0000 0.6683 3.2079 0.7040
a_g_percentile_upper 1605185463 0.0141 1.1618 3.5960 0.8092
e_bp_min_rp_val 1605185463 0.0000 0.4351 1.7210 0.3746
e_bp_min_rp_percentile_lower 1605185463 0.0000 0.3321 1.6367 0.3541
e_bp_min_rp_percentile_upper 1605185463 0.0066 0.5818 1.8421 0.4113
flame_flags 1615962357 200111.0000 200111.0000 200111.0000 0.0000
radius_val 1615962357 0.5000 2.3358 711.0825 4.2997
radius_percentile_lower 1615962357 0.2679 2.1129 617.0157 3.8904
radius_percentile_upper 1615962357 0.5011 2.5087 793.1968 4.6339
lum_val 1615962357 0.0268 7.0577 96606.6328 59.8202
lum_percentile_lower 1615962357 0.0214 5.9073 70501.7188 49.2951
lum_percentile_upper 1615962357 0.0272 8.2081 122711.5469 70.5975