GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 649519043 | |
| Trigger Time | Aug. 01, 2021, 13:57:18 | |
| Data Timestamp | Aug. 01, 2021, 16:04:18 | |
| Localization Timestamp | Aug. 01, 2021, 16:12:05 | |
| Balrog Ra [deg] | 238.2 | 1.5 |
| Balrog Dec [deg] | -40.8 | 0.9 |
| Error radius 1 σ [deg] | 2.3 | |
| Error radius 2 σ [deg] | 3.2 | |
| Estimated systematic error [deg] | 2 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 4.8e+02 | 46 |
| Spectral Parameter Index | -2.1 | 0.035 |
| Spectral Parameter XC [keV] | 3e+02 | 4e+01 |
| Satellite Phi [deg] | 110.91 | |
| Satellite Theta [deg] | -24.77 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 82.0% |
| Second most likely | GENERIC_SGR 13.0% |
GRB Location Alert
GRB 210801A: BALROG localization (Fermi Trigger 649519043 / GRB 210801581)
F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
649519043 at 13:57:18 on 01 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) = 238.2+/-1.5 deg
Decl.(2000.0) = -40.8+/-0.9 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210801581/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210801581/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210801581/json
F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
649519043 at 13:57:18 on 01 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) = 238.2+/-1.5 deg
Decl.(2000.0) = -40.8+/-0.9 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210801581/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210801581/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210801581/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
