GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 634112970 | |
| Trigger Time | Feb. 04, 2021, 06:29:25 | |
| Data Timestamp | Feb. 04, 2021, 08:05:47 | |
| Localization Timestamp | Feb. 04, 2021, 08:15:42 | |
| Balrog Ra [deg] | 116.3 | 2.4 |
| Balrog Dec [deg] | 13.2 | 1.9 |
| Error radius 1 σ [deg] | 2.7 | |
| Error radius 2 σ [deg] | 3.6 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 10 | 1.1 |
| Spectral Parameter Index | -1.6 | 0.03 |
| Spectral Parameter XC [keV] | 4e+03 | 3e+03 |
| Satellite Phi [deg] | -171.02 | |
| Satellite Theta [deg] | 24.06 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 75.0% |
| Second most likely | GENERIC_SGR 22.0% |
GRB Location Alert
GRB 210204A: BALROG localization (Fermi Trigger 634112970 / GRB 210204270)
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
634112970 at 06:29:25 on 04 Feb. 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) = 118.6+/-3.1 deg
Decl.(2000.0) = 12.0+/-3.1 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210204270/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210204270/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210204270/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
634112970 at 06:29:25 on 04 Feb. 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) = 118.6+/-3.1 deg
Decl.(2000.0) = 12.0+/-3.1 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210204270/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210204270/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210204270/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
