GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 719530557 | |
| Trigger Time | Oct. 20, 2023, 21:35:52 | |
| Data Timestamp | Oct. 21, 2023, 00:16:11 | |
| Localization Timestamp | Oct. 21, 2023, 02:54:04 | |
| Balrog Ra [deg] | 222.8 | 0.3 |
| Balrog Dec [deg] | 17.8 | 0.5 |
| Error radius 1 σ [deg] | 0.8 | |
| Error radius 2 σ [deg] | 1.3 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | band_function | |
| Spectral Parameter K [photons/cm^2/keV*s] | 0.29 | 0.015 |
| Spectral Parameter Alpha | -0.51 | 0.031 |
| Spectral Parameter Beta | -2.9 | 0.07 |
| Spectral Parameter XP | 95 | 1.2 |
| Satellite Phi [deg] | 31.19 | |
| Satellite Theta [deg] | -9.37 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 96.0% |
| Second most likely | SOLAR_FLARE 2.0% |
GRB Location Alert
To circulars@gcn.nasa.gov
GRB 231020B: BALROG localization (Fermi Trigger 719530557 / GRB 231020900)
T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
719530557 at 21:35:52 on 20 Oct. 2023 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) = 221.6+/-0.4 deg
Decl.(2000.0) = 17.6+/-0.6 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB231020900/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB231020900/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB231020900/json
GRB 231020B: BALROG localization (Fermi Trigger 719530557 / GRB 231020900)
T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
719530557 at 21:35:52 on 20 Oct. 2023 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) = 221.6+/-0.4 deg
Decl.(2000.0) = 17.6+/-0.6 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB231020900/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB231020900/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB231020900/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
