GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 649684549 | |
| Trigger Time | Aug. 03, 2021, 11:55:44 | |
| Data Timestamp | Aug. 03, 2021, 12:05:10 | |
| Localization Timestamp | Aug. 03, 2021, 12:18:58 | |
| Balrog Ra [deg] | 202.4 | 0.4 |
| Balrog Dec [deg] | -33.9 | 0.7 |
| Error radius 1 σ [deg] | 1.2 | |
| Error radius 2 σ [deg] | 2.0 | |
| Estimated systematic error [deg] | 2 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 16 | 2.3 |
| Spectral Parameter Index | -1.3 | 0.046 |
| Spectral Parameter XC [keV] | 2e+02 | 3e+01 |
| Satellite Phi [deg] | 77.20 | |
| Satellite Theta [deg] | -22.49 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 98.0% |
| Second most likely | GENERIC_SGR 1.0% |
GRB Location Alert
GRB 210803A: BALROG localization (Fermi Trigger 649684549 / GRB 210803497)
B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
649684549 at 11:55:44 on 03 Aug. 2021 were automatically fitted for spectrum
and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427;
Berlato et al. 2019, ApJ 873, 60).
The best-fit position (1 sigma statistical errors) is:
RA(2000.0) = 202.4+/-0.4 deg
Decl.(2000.0) = -33.9+/-0.7 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210803497/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210803497/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210803497/json
B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
649684549 at 11:55:44 on 03 Aug. 2021 were automatically fitted for spectrum
and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427;
Berlato et al. 2019, ApJ 873, 60).
The best-fit position (1 sigma statistical errors) is:
RA(2000.0) = 202.4+/-0.4 deg
Decl.(2000.0) = -33.9+/-0.7 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210803497/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210803497/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210803497/json
GRB Location
J2000 Coordinate Frame
All Corner Plot
J2000 Coordinate Frame
Moll Location Plot
J2000 Coordinate Frame
Satellite
Spectrum Residuals Plot
3D - GRB Location Plot
Satellite Coordiante Frame
Light Curves
