Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Add Vexas DES (II/369/vexasdes), Vexas PS (II/369/vexasps) and Vexas PM (II/369/vexaspm). Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Add ap3 magnitudes columns (and associated errors) to the VMC_DR4 catalogue (II/351/vmc_dr4).

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

The computed position angle (column named errPosAng) for this catalogue was defined as being north-of-east instead of east-of-north until February 16 2021 at 10:15 UTC+1.

This issue is now fixed.

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Please see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Remove duplicated _epoch2000_error columns.

Add the original ra_error, dec_error columns.

The computed position angle (column named errPosAng) for this catalogue was defined as being north-of-east instead of east-of-north until January 29 2021.

This issue is now fixed.

More significant digits have been added to the elliptical error parameters:

parameter	previous format	new format
errHalfMaj	%.3f	%.7f
errHalfMin	%.3f	%.7f
errPosAng	%.0f	%.2f

Columns phot_bp_rp_excess_factor and phot_bp_rp_excess_factor_corrected have been added.

The computed position angle (column named errPosAng) for this catalogue was defined as being north-of-east instead of east-of-north until January 29 2021.

This issue is now fixed.

More significant digits have been added to the elliptical error parameters:

parameter	previous format	new format
errHalfMaj	%.3f	%.7f
errHalfMin	%.3f	%.7f
errPosAng	%.0f	%.2f

Columns phot_bp_rp_excess_factor and phot_bp_rp_excess_factor_corrected have been added.

Fix the error ellipse (in arcseconds) which was built from ra/1000 and dec/1000 instead of ra_error/1000.0 and dec_error/1000.0

Fix misleading names: the ra_epoch2000, ra_epoch2000_error, dec_epoch2000, dec_epoch2000_error columns were unproperly renamed ra, ra_error, dec, dec_error, leading to duplicated ra and dec column names, and misleading the interpretation of these columns.

Cross-matches are based on the "stationary" positions RAdeg and DEdeg.

Position RAdeg, DEdeg and proper motions pmRA, pmDE have been corrected according to CatWISE2020_Table1_20201012.tbl.

Please, see the VizieR ReadMe file for acknowledging the usage of this particular catalogue.

Change asynchronous long jobs timeout from 1h to 2h.

Change asynchronous short jobs timeout from 10min to 15min.

Hardware problems (resulting in poor execution times) are fixed.

xMatch API released.

Web interface now works fine under IE8+.

Added VOTable as output format.

Added ASCII as output format.

Version 1.0

First public release of the xMatch service.