GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 779223130 | |
| Trigger Time | Sept. 10, 2025, 18:52:05 | |
| Data Timestamp | Sept. 10, 2025, 19:01:20 | |
| Localization Timestamp | Sept. 10, 2025, 22:09:45 | |
| Balrog Ra [deg] | 78.0 | 2.9 |
| Balrog Dec [deg] | -45.3 | 1.3 |
| Error radius 1 σ [deg] | 3.7 | |
| Error radius 2 σ [deg] | 5.4 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | band_function | |
| Spectral Parameter K [photons/cm^2/keV*s] | 0.036 | 0.0061 |
| Spectral Parameter Alpha | -0.4 | 0.11 |
| Spectral Parameter Beta | -2.3 | 0.26 |
| Spectral Parameter XP | 1.6e+02 | 20 |
| Satellite Phi [deg] | -21.66 | |
| Satellite Theta [deg] | 56.74 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 97.0% |
| Second most likely | GENERIC_TRANSIENT 2.0% |
GRB Location Alert
To circulars@gcn.nasa.gov
GRB 250910B: BALROG localization (Fermi Trigger 779223130 / GRB 250910786)
T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
779223130 at 18:52:05 on 10 Sept. 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) = 74.2 deg
Decl.(2000.0) = -47.5 deg
The 1 sigma statistical error radius is 3.6 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB250910786/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB250910786/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB250910786/json
GRB 250910B: BALROG localization (Fermi Trigger 779223130 / GRB 250910786)
T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
779223130 at 18:52:05 on 10 Sept. 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) = 74.2 deg
Decl.(2000.0) = -47.5 deg
The 1 sigma statistical error radius is 3.6 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB250910786/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB250910786/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB250910786/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
