... slconv (slconv-2.2) [xmmsas_20080701_1801-8.0.0] . ... Gaia region files are organised as a table of data, with additional information in the header which both specifies the source symbols and directs how their size and orientation should be calculated from the information in the table. ... To allow for greater flexibility however slconv allows the user to copy additional columns from the input FITS source list to the gaia region file. ...