GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 773937617 | |
| Trigger Time | July 11, 2025, 14:40:12 | |
| Data Timestamp | July 11, 2025, 16:04:27 | |
| Localization Timestamp | July 11, 2025, 16:19:23 | |
| Balrog Ra [deg] | 268.0 | 1.5 |
| Balrog Dec [deg] | 35.7 | 1.1 |
| Error radius 1 σ [deg] | 2.1 | |
| Error radius 2 σ [deg] | 2.9 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 0.54 | 0.11 |
| Spectral Parameter Index | -0.56 | 0.054 |
| Spectral Parameter XC [keV] | 1e+02 | 9 |
| Satellite Phi [deg] | -169.77 | |
| Satellite Theta [deg] | 51.32 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 83.0% |
| Second most likely | CYG_X1 13.0% |
GRB Location Alert
To circulars@gcn.nasa.gov
GRB 250711A: BALROG localization (Fermi Trigger 773937617 / GRB 250711611)
T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
773937617 at 14:40:12 on 11 July 2025 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 is:
RA(2000.0) = 267.8 deg
Decl.(2000.0) = 35.9 deg
The 1 sigma statistical error radius is 2.1 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB250711611/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB250711611/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB250711611/json
GRB 250711A: BALROG localization (Fermi Trigger 773937617 / GRB 250711611)
T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
773937617 at 14:40:12 on 11 July 2025 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 is:
RA(2000.0) = 267.8 deg
Decl.(2000.0) = 35.9 deg
The 1 sigma statistical error radius is 2.1 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB250711611/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB250711611/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB250711611/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
