GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 800172815 | |
| Trigger Time | May 11, 2026, 06:13:30 | |
| Data Timestamp | May 11, 2026, 08:02:14 | |
| Localization Timestamp | May 11, 2026, 08:15:11 | |
| Balrog Ra [deg] | 197.2 | 0.9 |
| Balrog Dec [deg] | -33.5 | 0.7 |
| Error radius 1 σ [deg] | 1.3 | |
| Error radius 2 σ [deg] | 1.9 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 4.9 | 0.76 |
| Spectral Parameter Index | -0.87 | 0.042 |
| Spectral Parameter XC [keV] | 2e+02 | 2e+01 |
| Satellite Phi [deg] | 167.01 | |
| Satellite Theta [deg] | -28.37 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 91.0% |
| Second most likely | DISTANT_PARTICLES 5.0% |
GRB Location Alert
To circulars@gcn.nasa.gov
GRB 260511A: BALROG localization (Fermi Trigger 800172815 / GRB 260511259)
T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
800172815 at 06:13:30 on 11 May 2026 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) = 197.3 deg
Decl.(2000.0) = -33.7 deg
The 1 sigma statistical error radius is 1.3 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB260511259/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB260511259/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB260511259/json
GRB 260511A: BALROG localization (Fermi Trigger 800172815 / GRB 260511259)
T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
800172815 at 06:13:30 on 11 May 2026 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) = 197.3 deg
Decl.(2000.0) = -33.7 deg
The 1 sigma statistical error radius is 1.3 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB260511259/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB260511259/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB260511259/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
