The table upload feature finds positional matches with coordinates in an input source list. The input table file must be created on the client machine in ASCII format according to rules regarding formatting and column names. IRSA recommends uploading new tables to the Table Formatting service, which aids users by discovering and attempting to correct common formatting problems.

Use the "Browse..." button to select the local table file for upload, or type in the file name. If the radius is not included in the table, enter the radius of the search region and select the required angular unit. If the search radius exceeds the maximum allowed value, Gator will default to the maximum value and write a message to this effect to the query monitor.

Two search modes are available for table upload:

• specifiy parameters through the Gator interface, or
• read parameters from user's table

Gator also allows the user to upload a table with cone search parameters defined in the input table. In that case, the "radius" box on the Gator interface must be blank or "0". In the user table, column names of "major", "ratio", and "angle" are required for an elliptical search, while a column name of "major" is necessary for a circular search. If the user wishes to perform the same cone search on all entries in the input table, these cone search parameters can be input in the Gator interface instead.

Ellipse Search Example

The following is an example of a table with elliptical search parameters: major (the semi-major axis), ratio and angle (the position angle). Missing ratio and angle columns result in a circular search with radius equal to major.

\ Example of ellipse search
\EQUINOX = 'J2000.0'
|   ra     |   dec    |  major | ratio | angle |
|   double |   double | double | double| double|
 185.500000 15.500000    1000.    0.25    30
 186.000000 15.000000     500.    0.50    60

This example shows a table with the semi-major axis given in the third column and the ratio in the fourth column of the table. Since no position angle is provided, the default of 0 is used.

\ Example of ellipse search
\EQUINOX = 'J2000.0'
|   ra     |   dec    |  major | ratio |
|   double |   double | double | double|
 185.500000 15.500000    1000.   0.25
 186.000000 15.000000     500.   0.50

Cone Search Example

Example of a table with the semi-major axis given in the third column of the table. Since no axis ratio or position angle is given, this results in a circular search.

\ Example of cone search
\EQUINOX = 'J2000.0'
|   ra     |   dec    |  major |
|   double |   double | double |
 185.500000  15.500000    1000.
 186.000000  15.000000     500.

More DBMS Constraints on Upload Table

Gator has more restrictions for user's input tables. Please read DBMS Constraints for more detailed information.