SWIFTGRBBA ivo://nasa.heasarc/swiftgrbba NASA/GSFC HEASARC Swift Project; HEASARC 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Observation This database table includes the early results published in the Gamma-Ray Burst Coordinates Network (GCN) circulars on GRBs detected by the Swift observatory and GRBs detected first by other observatories and followed by Swift. The Swift observatory has a rapid (minute timescale) response to GRB detection and performs sensitive X-ray and optical afterglow observations of hundreds of GRBs on all timescales, from minutes to even months later. The instrumentation consists in a large field of view (FOV) instrument, the Burst Alert Telescope (BAT, 15-150 keV) and two narrow field of view instruments, the Ultraviolet/Optical Telescope (UVOT) and the X-ray Telescope (XRT). The BAT searches the sky for gamma-ray bursts (GRBs), determines their location with a precision of a few arcminutes, and triggers an autonomous spacecraft slew to place the burst in the FOV of the narrow field instruments. The first-look data from the three Swift instruments for a newly discovered GRB and its afterglow are transmitted to the ground via TDRSS. The complete telemetry (including the messages transmitted via TDRSS) is subsequently sent down via the Malindi ground station. The information transmitted via TDRSS are broadcast via the the Gamma-Ray Burst Coordinates Network (GCN) followed by subsequent GCN circular based on the early ground analysis of the data collected by Malindi. If the GRB is triggered by Swift , this table records the initial characteristic associated to a burst obtained with the data coming via TDRSS and initial data downloaded via Malindi which results are published via the GCN. In addition the table reports other burst characteristics as for redshift obtained by observations with ground observatories. If the GRB is detected first by other observatories, the table reports results obtained with the ground analysis of the Malindi data and published via the GCN. This database table is generated by compiling the results of the GCN circulars. It was added to the HEASARC database in March 2025. During operation, it is updated weekly and/or for any new trigger. This table is also available at <a href="https://swift.gsfc.nasa.gov/archive/grb_table/">https://swift.gsfc.nasa.gov/archive/grb_table/</a>. This is a service provided by NASA HEASARC . 2004ApJ...611.1005G https://heasarc.gsfc.nasa.gov/W3Browse/all/swiftgrbba.html Archive Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=swiftgrbba& GET text/xml 180 99999 true 54.302 -89.029 1 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=swiftgrbba GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_swiftgrbba&Action=More+Options&Action=Parameter+Search&ConeAdd=1 GAMMA-RAY BURSTS 1 Gamma-ray public swiftgrbba Swift Gamma Ray Burst Compilation by Burst Advocate name Designation of the Gamma Ray Burst meta.id;meta.main char nullable trigger_time Trigger Time of GRB (UTC) time.start;obs char nullable trigger_obs Observatory That Recorded the Trigger meta.note;obs char nullable target_id Swift Trigger Number meta.id;src int nullable ra Right Ascension (BAT) degree pos.eq.ra;meta.main double nullable dec Declination (BAT) degree pos.eq.dec;meta.main double nullable error_radius 90%-Confidence Radial Position Error (BAT) arcmin stat.error;pos double nullable bat_t90 Time Interval in Which 90% of Fluence (15-150 keV) Was Detected by BAT s time.interval double nullable bat_fluence BAT Fluence (15-150 keV) erg/cm^2 phot.fluence double nullable bat_fluence_error BAT Fluence 90% Error (15-150 keV) erg/cm^2 stat.error;phot.fluence double nullable bat_1s_peak_flux BAT 1-Second Peak Photon Flux (15-150 keV) photon/cm^2/sec phot.fluence double nullable bat_1s_peak_flux_error BAT 1-Second Peak Photon Flux 90% Error (15-150 keV) photon/cm^2/sec stat.error;phot.fluence double nullable xrt_error_radius XRT 90% Error Radius arcsec stat.error;pos double nullable xrt_gamma XRT Spectral Index (Gamma) spect.index double nullable ref_bat BAT References meta.ref;obs char nullable ref_uvot UVOT References meta.ref;obs char nullable other_redshift Other Redshift src.redshift char nullable lii Galactic Longitude (BAT) degree pos.galactic.lon double nullable xrt_dec XRT Dec (J2000) degree pos.eq.dec double nullable ref_radio Radio References meta.ref;em.radio char nullable "time" Trigger Time of GRB (MJD) mjd time.start;obs double nullable xrt_24hr_flux XRT 24-Hour Flux (0.3-10 keV) erg/cm^2/s phot.flux;em.X-ray double nullable xrt_11hr_flux XRT 11-Hour Flux (0.3-10 keV) erg/cm^2/s phot.flux;em.X-ray double nullable comment Comments meta.note char nullable bat_spectral_model BAT Model (CPL vs. PL) meta.code;spect;meta.modelled char nullable bat_photon_index_error BAT Photon Index 90% Error (15-150 keV) stat.error double nullable uvot_error_radius UVOT 90% Error Radius arcsec stat.error;pos double nullable ref_redshift Redshift Measurement Reference meta.ref;src.redshift char nullable ref_other Other References meta.ref char nullable uvot_vmag_flag Boolean Flag Indicates UVOT V Magnitude Is an Upper Limit (1=Yes) meta.code;phot.mag;em.opt.V short nullable xrt_ra XRT RA (J2000) degree pos.eq.ra double nullable bat_photon_index BAT Photon Index spect.index;em.X-ray double nullable redshift_comment Redshift Comment meta.note;src.redshift char nullable bii Galactic Latitude (BAT) degree pos.galactic.lat double nullable uvot_dec UVOT Dec (J2000) degree pos.eq.dec double nullable xrt_lc_index XRT Initial Temporal Decay Index phot double nullable xrt_nh XRT Column Density (NH) cm^-2 phys.columnDensity double nullable uvot_mag UVOT Other Filter Magnitudes phot.mag char nullable advocate Burst Advocate meta.id char nullable other_obs Other Observatory Detections meta.note;obs char nullable host_galaxy Host Galaxy meta.id.assoc char nullable xrt_first_obs XRT Time to First Observation s time.start;obs double nullable uvot_first_obs UVOT Time to First Observation s time.start;obs double nullable xrt_early_flux XRT Early Flux (0.3-10 keV) erg/cm^2/s phot.flux;em.X-ray double nullable ref_host Host Galaxy Identification Reference meta.ref char nullable uvot_vmag UVOT V Magnitude mag phot.mag;em.opt.V double nullable ref_xrt XRT References meta.ref;obs char nullable uvot_ra UVOT RA (J2000) degree pos.eq.ra double nullable redshift Redshift src.redshift double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable