CDS xMatch service documentation: Submitting a cross-match job

1.4 Submitting a cross-match job

Point your browser to http://cdsxmatch.u-strasbg.fr/

Choose tables to cross-match

$\includegraphics[width=\textwidth ]{img/table-selection1.jpg}$
Select the two tables you wish to cross-match with the interface displayed above.
The My store tab lists all your uploaded tables.

If you want to use a VizieR table which is not in the list, simply type its full name (eg I/239/hip_main) in the text box, as shown below:

$\includegraphics[width=\textwidth ]{img/table-selection2.jpg}$

Choose cross-match method

Click on $\includegraphics[width=0.5\textwidth ]{img/show-options.jpg}$ to open the panel with the cross-match options. This panel allows one to choose the cross-match method and its parameters.

You can perform a cross-match based only on the positions, or a cross-match based on positions taking into account error uncertainties.
$\includegraphics[width=0.6\textwidth ]{img/xmatch-method.jpg}$

Details on these two methods can be found in section 2.1.

Choose sky area

Cross-match can be performed on all sources of both tables, or can be restricted to a cone around a given position or object name, or to a given HEALPix cell (in NESTED mode, ICRS frame). If an object name is given, its position will be resolved by Sesame.
Choose the sky area you wish from the panel shown below.
$\includegraphics[width=0.7\textwidth ]{img/xmatch-area.jpg}$
See also section 2.2.

Submit !

Once the tables selected and the options set, click on $\includegraphics[width=0.2\textwidth ]{img/submit-xmatch-btn.jpg}$