skip to main content

gaia data release 3 documentation

17.1 Catalogue statistics

17.1.9 XP mean spectra

xp_continuous_mean_spectrum table

The data fields of xp_continuous_mean_spectrum are described in Section 20.12.3. Statistics are provided in Table 17.40 and a selection of plots in Section 17.2.12.

Table 17.40: xp_continuous_mean_spectrum. Statistics for the 219 120 334 sources. Arrays in a data record are represented by their average (.avg), length (.len), maximum (.max), median (.med), minimum (.min) and the number of NaN elements (.nan), and the statistics are formed over these values.
Field name Null values Minimum Maximum Mean Std. dev.
bp_basis_function_id 1 56 56 56 0
bp_chi_squared 1 1.94 8.38e+06 2e+03 1.06e+03
bp_coefficient_correlations 1 nan nan nan nan
bp_coefficient_correlations.avg 1 -0.0125 0.0364 0.00253 0.00128
bp_coefficient_correlations.len 1 1.48e+03 1.48e+03 1.48e+03 0
bp_coefficient_correlations.max 1 0.294 1 0.707 0.0824
bp_coefficient_correlations.med 1 -0.127 0.0563 0.000504 0.000748
bp_coefficient_correlations.min 1 -1 -0.191 -0.416 0.0826
bp_coefficient_correlations.nan 1 0 0 0 0
bp_coefficient_errors 1 nan nan nan nan
bp_coefficient_errors.avg 1 0.103 1.22e+06 1.18 132
bp_coefficient_errors.len 1 55 55 55 0
bp_coefficient_errors.max 1 0.292 8.35e+06 3.24 617
bp_coefficient_errors.med 1 0.105 1.04e+06 1.07 119
bp_coefficient_errors.min 1 0.00973 1.76e+05 0.0637 12.5
bp_coefficient_errors.nan 1 0 0 0 0
bp_coefficients 1 nan nan nan nan
bp_coefficients.avg 1 -1.27e+03 1.33e+06 35 1.24e+03
bp_coefficients.len 1 55 55 55 0
bp_coefficients.max 1 0.258 8.58e+07 2.2e+03 8.41e+04
bp_coefficients.med 1 -2.11e+04 3.78e+04 -0.0381 9.15
bp_coefficients.min 1 -4.1e+07 -0.137 -353 2.77e+04
bp_coefficients.nan 1 0 0 0 0
bp_degrees_of_freedom 1 213 7.83e+03 1.86e+03 736
bp_n_measurements 1 268 7.89e+03 1.92e+03 736
bp_n_parameters 1 55 55 55 0
bp_n_rejected_measurements 1 0 1.27e+03 17.4 15.5
bp_n_relevant_bases 1 1 55 14.4 15.8
bp_relative_shrinking 1 0.0734 1 1 0.00683
bp_standard_deviation 1 0.0515 170 1.04 0.0609
rp_basis_function_id 0 57 57 57 0
rp_chi_squared 0 12.5 1.99e+07 2.8e+03 3.29e+03
rp_coefficient_correlations 0 nan nan nan nan
rp_coefficient_correlations.avg 0 -0.0126 0.04 -0.00159 0.000875
rp_coefficient_correlations.len 0 1.48e+03 1.48e+03 1.48e+03 0
rp_coefficient_correlations.max 0 0.149 1 0.3 0.106
rp_coefficient_correlations.med 0 -0.0132 0.609 -0.000498 0.000268
rp_coefficient_correlations.min 0 -1 -0.146 -0.333 0.104
rp_coefficient_correlations.nan 0 0 0 0 0
rp_coefficient_errors 0 nan nan nan nan
rp_coefficient_errors.avg 0 0.0747 8.81e+05 1.19 112
rp_coefficient_errors.len 0 55 55 55 0
rp_coefficient_errors.max 0 0.136 1.48e+06 2.07 218
rp_coefficient_errors.med 0 0.0803 9.23e+05 1.27 114
rp_coefficient_errors.min 0 0.00878 1.11e+05 0.0824 8.47
rp_coefficient_errors.nan 0 0 0 0 0
rp_coefficients 0 nan nan nan nan
rp_coefficients.avg 0 -107 2.51e+06 51.2 1.98e+03
rp_coefficients.len 0 55 55 55 0
rp_coefficients.max 0 4.94 1.2e+08 2.92e+03 1.09e+05
rp_coefficients.med 0 -3.57e+04 7.13e+04 -0.0486 14.3
rp_coefficients.min 0 -1.68e+07 -0.166 -267 1.31e+04
rp_coefficients.nan 0 0 0 0 0
rp_degrees_of_freedom 0 211 1.56e+04 2.53e+03 928
rp_n_measurements 0 266 1.57e+04 2.59e+03 928
rp_n_parameters 0 55 55 55 0
rp_n_rejected_measurements 0 0 1.72e+03 20.9 18.8
rp_n_relevant_bases 0 1 55 13.2 13.7
rp_relative_shrinking 0 0.649 1 1 0.000188
rp_standard_deviation 0 0.119 96.2 1.04 0.133
solution_id 0 4.55e+18 4.55e+18 4.55e+18 0
source_id 0 4.3e+09 6.92e+18 4.13e+18 1.84e+18

xp_sampled_mean_spectrum table

The data fields of xp_sampled_mean_spectrum are described in Section 20.12.4 and statistics are provided in Table 17.41.

Table 17.41: xp_sampled_mean. Statistics for the 34 468 337 sources. Arrays in a data record are represented by their average (.avg), length (.len), maximum (.max), median (.med), minimum (.min) and the number of NaN elements (.nan), and the statistics are formed over these values.
Field name Null values Minimum Maximum Mean Std. dev.
dec 0 -90 90 -9.76 41.3
flux 0 nan nan nan nan
flux.avg 0 7.17e-18 1.98e-12 2.76e-16 4.81e-15
flux.len 0 343 343 343 0
flux.max 0 1.57e-17 1.43e-11 5.23e-16 1.34e-14
flux.med 0 6.31e-19 1.94e-12 2.66e-16 4.36e-15
flux.min 0 -8.04e-13 1.1e-12 5.99e-17 1.03e-15
flux.nan 0 0 0 0 0
flux_error 0 nan nan nan nan
flux_error.avg 0 2.97e-19 1.03e-12 5.93e-18 3.02e-16
flux_error.len 0 343 343 343 0
flux_error.max 0 1.22e-18 6.78e-12 3.71e-17 2.25e-15
flux_error.med 0 2.25e-19 4.76e-13 3.42e-18 1.5e-16
flux_error.min 0 2.72e-20 2.1e-13 1.37e-18 6.18e-17
flux_error.nan 0 0 0 0 0
ra 0 1.52e-06 360 205 93.2
solution_id 0 4.55e+18 4.55e+18 4.55e+18 0
source_id 0 3.87e+10 6.92e+18 3.97e+18 1.92e+18

xp_summary table

The data fields of xp_summary are described in Section 20.12.2 and statistics are provided in Table 17.42.

Table 17.42: xp_summary. Statistics for the 219 120 334 sources.
Field name Null values Minimum Maximum Mean Std. dev.
bp_chi_squared 1 1.94 8.38e+06 2e+03 1.06e+03
bp_n_blended_transits 1 0 134 6.44 11.8
bp_n_contaminated_transits 1 0 90 0.0411 0.599
bp_n_measurements 1 268 7.89e+03 1.92e+03 736
bp_n_rejected_measurements 1 0 1.27e+03 17.4 15.5
bp_n_relevant_bases 1 1 55 14.4 15.8
bp_n_transits 1 5 137 33.2 12.8
bp_relative_shrinking 1 0.0734 1 1 0.00683
bp_standard_deviation 1 0.0515 170 1.04 0.0609
rp_chi_squared 0 12.5 1.99e+07 2.8e+03 3.29e+03
rp_n_blended_transits 0 0 263 8.08 15.2
rp_n_contaminated_transits 0 0 225 0.0498 0.778
rp_n_measurements 0 266 1.57e+04 2.59e+03 928
rp_n_rejected_measurements 0 0 1.72e+03 20.9 18.8
rp_n_relevant_bases 0 1 55 13.2 13.7
rp_n_transits 0 5 267 44.9 16.1
rp_relative_shrinking 0 0.649 1 1 0.000188
rp_standard_deviation 0 0.119 96.2 1.04 0.133
solution_id 0 4.55e+18 4.55e+18 4.55e+18 0
source_id 0 4.3e+09 6.92e+18 4.13e+18 1.84e+18