GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 608375325 | |
| Trigger Time | April 12, 2020, 09:08:40 | |
| Data Timestamp | April 12, 2020, 09:20:13 | |
| Localization Timestamp | April 12, 2020, 09:33:47 | |
| Balrog Ra [deg] | 271.0 | 1.1 |
| Balrog Dec [deg] | 64.4 | 0.3 |
| Error radius 1 σ [deg] | 0.5 | |
| Error radius 2 σ [deg] | 0.9 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 8.5 | 0.23 |
| Spectral Parameter Index | -0.85 | 0.0076 |
| Spectral Parameter XC [keV] | 4e+02 | 7 |
| Satellite Phi [deg] | -138.89 | |
| Satellite Theta [deg] | 30.82 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | 91%: GRB |
| Second most likely | 5%: CygX-1 |
GRB Location Alert
GRB 200412B: BALROG localization (Fermi Trigger 608375325 / GRB 200412381)
J. Burgess, B. Biltzinger, F. Kunzweiler, F. Berlato & J. Greiner (all MPE Garching) report:
We note that the spectral fit from the automated pipeline appears off due to more high-energy emission than normal. We are re-running the pipeline manually to test this hypothesis. This position may be updated.
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
608375325 at 09:08:40 on 12 April 2020 were automatically fitted for spectrum
and sky location with the official 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) = 271.0+/-1.1 deg
Decl.(2000.0) = 64.4+/-0.3 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB200412381/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB200412381/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB200412381/json
J. Burgess, B. Biltzinger, F. Kunzweiler, F. Berlato & J. Greiner (all MPE Garching) report:
We note that the spectral fit from the automated pipeline appears off due to more high-energy emission than normal. We are re-running the pipeline manually to test this hypothesis. This position may be updated.
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
608375325 at 09:08:40 on 12 April 2020 were automatically fitted for spectrum
and sky location with the official 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) = 271.0+/-1.1 deg
Decl.(2000.0) = 64.4+/-0.3 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB200412381/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB200412381/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB200412381/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
