GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 661329957 | |
| Trigger Time | Dec. 16, 2021, 06:45:52 | |
| Data Timestamp | Dec. 16, 2021, 07:26:27 | |
| Localization Timestamp | Dec. 16, 2021, 07:32:20 | |
| Balrog Ra [deg] | 51.1 | 2.9 |
| Balrog Dec [deg] | -62.2 | 2.5 |
| Error radius 1 σ [deg] | 2.2 | |
| Error radius 2 σ [deg] | 3.3 | |
| Estimated systematic error [deg] | 2 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 0.62 | 0.14 |
| Spectral Parameter Index | -0.71 | 0.067 |
| Spectral Parameter XC [keV] | 2e+02 | 2e+01 |
| Satellite Phi [deg] | 106.87 | |
| Satellite Theta [deg] | 56.68 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 95.0% |
| Second most likely | GENERIC_TRANSIENT 4.0% |
GRB Location Alert
GRB 211216A: BALROG localization (Fermi Trigger 661329957 / GRB 211216282)
B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
661329957 at 06:45:52 on 16 Dec. 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) = 51.0+/-2.4 deg
Decl.(2000.0) = -62.2+/-4.0 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB211216282/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB211216282/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB211216282/json
B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
661329957 at 06:45:52 on 16 Dec. 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) = 51.0+/-2.4 deg
Decl.(2000.0) = -62.2+/-4.0 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB211216282/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB211216282/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB211216282/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
