GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | 749332209 | |
| Trigger Time | Sept. 29, 2024, 19:50:04 | |
| Data Timestamp | Sept. 29, 2024, 19:59:19 | |
| Localization Timestamp | Sept. 30, 2024, 00:17:53 | |
| Balrog Ra [deg] | 359.0 | 8.3 |
| Balrog Dec [deg] | 74.5 | 1.3 |
| Error radius 1 σ [deg] | 2.9 | |
| Error radius 2 σ [deg] | 4.5 | |
| Estimated systematic error [deg] | 1 | |
| Fitted Model | band_function | |
| Spectral Parameter K [photons/cm^2/keV*s] | 0.13 | 0.017 |
| Spectral Parameter Alpha | -0.059 | 0.084 |
| Spectral Parameter Beta | -3.2 | 0.46 |
| Spectral Parameter XP | 1.2e+02 | 4.7 |
| Satellite Phi [deg] | -142.71 | |
| Satellite Theta [deg] | -17.64 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | GRB 97.0% |
| Second most likely | GENERIC_TRANSIENT 1.0% |
GRB Location Alert
To circulars@gcn.nasa.gov
GRB 240929A: BALROG localization (Fermi Trigger 749332209 / GRB 240929826)
T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
749332209 at 19:50:04 on 29 Sept. 2024 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) = 359.0 deg
Decl.(2000.0) = 75.4 deg
The 1 sigma statistical error radius is 2.5 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB240929826/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB240929826/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB240929826/json
GRB 240929A: BALROG localization (Fermi Trigger 749332209 / GRB 240929826)
T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
749332209 at 19:50:04 on 29 Sept. 2024 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) = 359.0 deg
Decl.(2000.0) = 75.4 deg
The 1 sigma statistical error radius is 2.5 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB240929826/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB240929826/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB240929826/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
