GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 642425204 | |
| Trigger Time | May 11, 2021, 11:26:39 | |
| Data Timestamp | May 11, 2021, 12:58:25 | |
| Localization Timestamp | May 11, 2021, 13:05:18 | |
| Balrog Ra [deg] | 314.3 | 1.5 |
| Balrog Dec [deg] | 56.1 | 0.8 |
| Error radius 1 σ [deg] | 1.3 | |
| Error radius 2 σ [deg] | 2.7 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 6.3 | 0.66 |
| Spectral Parameter Index | -0.99 | 0.034 |
| Spectral Parameter XC [keV] | 1e+02 | 8 |
| Satellite Phi [deg] | -31.67 | |
| Satellite Theta [deg] | 40.76 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 91.0% |
| Second most likely | CYG_X1 7.0% |
GRB Location Alert
GRB 210511B: BALROG localization (Fermi Trigger 642425204 / GRB 210511477)
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
642425204 at 11:26:39 on 11 May 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) = 314.1+/-1.4 deg
Decl.(2000.0) = 56.3+/-0.6 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210511477/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210511477/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210511477/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
642425204 at 11:26:39 on 11 May 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) = 314.1+/-1.4 deg
Decl.(2000.0) = 56.3+/-0.6 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210511477/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210511477/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210511477/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
