GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 649072251 | |
| Trigger Time | July 27, 2021, 09:50:46 | |
| Data Timestamp | July 27, 2021, 11:36:05 | |
| Localization Timestamp | July 27, 2021, 11:43:34 | |
| Balrog Ra [deg] | 184.2 | 6.6 |
| Balrog Dec [deg] | -64.3 | 3.5 |
| Error radius 1 σ [deg] | 5.8 | |
| Error radius 2 σ [deg] | 7.7 | |
| Estimated systematic error [deg] | 2 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 0.048 | 0.024 |
| Spectral Parameter Index | -0.23 | 0.12 |
| Spectral Parameter XC [keV] | 5e+02 | 9e+01 |
| Satellite Phi [deg] | 111.13 | |
| Satellite Theta [deg] | 66.42 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 96.0% |
| Second most likely | GENERIC_TRANSIENT 3.0% |
GRB Location Alert
GRB 210727A: BALROG localization (Fermi Trigger 649072251 / GRB 210727410)
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
649072251 at 09:50:46 on 27 July 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) = 184.2+/-6.6 deg
Decl.(2000.0) = -64.3+/-3.5 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210727410/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210727410/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210727410/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
649072251 at 09:50:46 on 27 July 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) = 184.2+/-6.6 deg
Decl.(2000.0) = -64.3+/-3.5 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210727410/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210727410/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210727410/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
