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