GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 630327810 | |
| Trigger Time | Dec. 22, 2020, 11:03:25 | |
| Data Timestamp | Dec. 22, 2020, 11:09:55 | |
| Localization Timestamp | Dec. 22, 2020, 11:22:59 | |
| Balrog Ra [deg] | 96.3 | 4.6 |
| Balrog Dec [deg] | 39.9 | 7.4 |
| Error radius 1 σ [deg] | 14.3 | |
| Error radius 2 σ [deg] | 25.3 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 2.7 | 1.7 |
| Spectral Parameter Index | -1.2 | 0.22 |
| Spectral Parameter XC [keV] | 1e+03 | 1e+03 |
| Satellite Phi [deg] | 171.63 | |
| Satellite Theta [deg] | -28.60 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 95.0% |
| Second most likely | GROJ_0422_32 2.0% |
GRB Location Alert
GRB 201222B: BALROG localization (Fermi Trigger / GRB 201222461)
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
at 11:03:25 on 22 Dec. 2020 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) = 99.7+/-3.0 deg
Decl.(2000.0) = 27.7+/-4.7 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB201222461/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB201222461/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB201222461/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
at 11:03:25 on 22 Dec. 2020 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) = 99.7+/-3.0 deg
Decl.(2000.0) = 27.7+/-4.7 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB201222461/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB201222461/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB201222461/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
