auxiliary information about mean BP/RP spectra (gaiadr3.xp_summary)

The table has 219197643 rows, 20 columns.

Description

This tables contains auxiliary information about the mean BP/RP spectrum of a given source. It should be used in order to refine queries on spectra and build dedicated samples before interrogating the DataLink protocol to download the results of those queries.

Attribution

If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

More information can be found on the credit and citation instructions page.

Columns

Name Type UCD Unit Description
source_id long meta.id
meta.main
meta.ref
Unique source identifier (unique within a particular Data Release)
solution_id long meta.version Solution Identifier
bp_n_relevant_bases short meta.number Number of bases that are relevant for the representation of this mean BP spectrum
bp_relative_shrinking float meta.number Measure of the relative shrinking of the coefficient vector when truncation is applied for the mean BP spectrum
bp_n_measurements short stat.fit.param Number of measurements used for the BP spectrum generation
bp_n_rejected_measurements short stat.fit.param Number of rejected measurements in the BP spectrum generation
bp_standard_deviation float stat.stdev "electron".s**-1.pixel**-1 Standard deviation for the BP spectrum representation
bp_chi_squared float stat.fit.chi2 Chi squared for the BP spectrum representation
bp_n_transits short stat.fit.param Number of transits contributing to the mean in BP
bp_n_contaminated_transits short stat.fit.param Number of contaminated transits in BP
bp_n_blended_transits short stat.fit.param Number of blended transits in BP
rp_n_relevant_bases short stat.fit.param Number of bases that are relevant for the representation of this mean RP spectrum
rp_relative_shrinking float stat.fit.param Measure of the relative shrinking of the coefficient vector when truncation is applied for the mean RP spectrum
rp_n_measurements short stat.fit.param Number of measurements used for the RP spectrum generation
rp_n_rejected_measurements short stat.fit.param Number of rejected measurements in the RP spectrum generation
rp_standard_deviation float stat.stdev "electron".s**-1.pixel**-1 Standard deviation for the RP spectrum representation
rp_chi_squared float stat.fit.chi2 Chi squared for the RP spectrum representation
rp_n_transits short stat.fit.param Number of transits contributing to the mean in RP
rp_n_contaminated_transits short stat.fit.param Number of contaminated transits in RP
rp_n_blended_transits short stat.fit.param Number of blended transits in RP