GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 650687034 | |
| Trigger Time | Aug. 15, 2021, 02:23:49 | |
| Data Timestamp | Aug. 15, 2021, 03:41:19 | |
| Localization Timestamp | Aug. 15, 2021, 03:48:24 | |
| Balrog Ra [deg] | 347.5 | 2.7 |
| Balrog Dec [deg] | -39.9 | 2.7 |
| Error radius 1 σ [deg] | 4.9 | |
| Error radius 2 σ [deg] | 6.8 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 3.6 | 1.1 |
| Spectral Parameter Index | -1.2 | 0.097 |
| Spectral Parameter XC [keV] | 2e+02 | 5e+01 |
| Satellite Phi [deg] | -146.10 | |
| Satellite Theta [deg] | -17.06 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 96.0% |
| Second most likely | GENERIC_TRANSIENT 3.0% |
GRB Location Alert
GRB 210815A: BALROG localization (Fermi Trigger 650687034 / GRB 210815100)
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
650687034 at 02:23:49 on 15 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) = 347.5+/-2.7 deg
Decl.(2000.0) = -39.9+/-2.7 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210815100/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210815100/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210815100/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
650687034 at 02:23:49 on 15 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) = 347.5+/-2.7 deg
Decl.(2000.0) = -39.9+/-2.7 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210815100/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210815100/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210815100/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
