GRBCATDUAL ivo://nasa.heasarc/grbcatdual NASA/GSFC HEASARC Angelini et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov GRB This table is an associated to the GRBs Catalog and lists the parameters that define the localization region if the region is dual (two error regions). For a given GRB the localization can be provided by different observatories with different region types or by the same region type with different parameters. The different region types reported in literature are the following: circle, annulus, box, dual, annulus intersect, irregular, and intersect. This table contains the description only for the dual region type, the other types are stored in separate tables. The dual region type is for GRBs that had the localization defined by two error circle regions. The dual regions are defined by the centers of the two circle region given in RA and Dec and their radii given in degrees. The measurements are reported as found in literature and any differences or remarks are included in one of the table parameter (local_notes). The literature references are provided in the GRBs Catalog main table which is linked to this region table. This table was ingested by the HEASARC in June 2008 based on electronic versions obtained from the author(s), who compiled the catalog in 2005. This is a service provided by NASA HEASARC . https://heasarc.gsfc.nasa.gov/W3Browse/all/grbcatdual.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=grbcatdual GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_grbcatdual&Action=More+Options&Action=Parameter+Search&ConeAdd=1 GAMMA-RAY BURSTS 0.0166666666666667 Gamma-ray public grbcatdual Catalog of Gamma-Ray Bursts: Dual Regions name Burst Designation as GRB YYMMDD meta.id;meta.main char nullable dual_ra1 Dual Localization, First Right Ascension degree pos.eq.ra double nullable dual_dec1 Dual Localization, First Declination degree pos.eq.dec double nullable dual_radius1 Dual Localization, First Radius (Degrees) degree phys.size.radius double nullable dual_area1 Dual Localization, First Area (Arcmin^2) arcmin^2 phys.angArea double nullable dual_ra2 Dual Localization, Second Right Ascension degree pos.eq.ra double nullable dual_dec2 Dual Localization, Second Declination degree pos.eq.dec double nullable dual_radius2 Dual Localization, Second Radius (Degrees) degree phys.size.radius double nullable dual_area2 Dual Localization, Second Area (Arcmin^2) arcmin^2 phys.angArea double nullable local_notes Localization Notes meta.note char nullable id Source ID Number meta.id int nullable "__row" System index column char nullable record_number Unique Identifier for Entry meta.id int nullable