GRB Properties
Parameters calculated by MPE
| Property | Value | Error (1 σ statistical) |
|---|---|---|
| Trigger Number | ||
| Trigger Time | March 07, 2023, 15:44:06 | |
| Data Timestamp | March 07, 2023, 17:12:46 | |
| Localization Timestamp | March 08, 2023, 08:23:32 | |
| Balrog Ra [deg] | 41.4 | 0.4 |
| Balrog Dec [deg] | -71.6 | 0.1 |
| Error radius 1 σ [deg] | 0.2 | |
| Error radius 2 σ [deg] | 0.4 | |
| Estimated systematic error [deg] | 2 | |
| Fitted Model | cutoff_powerlaw | |
| Spectral Parameter K [photons/cm^2/keV*s] | 12 | 0.31 |
| Spectral Parameter Index | -0.4 | 0.0054 |
| Spectral Parameter XC [keV] | 6e+02 | 4 |
| Satellite Phi [deg] | 134.03 | |
| Satellite Theta [deg] | -55.02 |
Parameters from external Source
| Property | Value |
|---|---|
| Swift Ra [deg] | |
| Swift Dec [deg] | |
| Most likely | None None% |
| Second most likely | None None% |
GRB Location Alert
GRB 230307A: BALROG localization (Fermi Trigger 699896651/ GRB 230307656)
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
699896651 at 15:44:06 on 07 March 2023 were 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) = 41.8+/-0.4 deg
Decl.(2000.0) = -71.5+/-0.1 deg
We estimate an additional systematic error of 2 deg.
The position is in agreement with the IPN localization (GCN Circ. 33413).
We note that the determined localization is close to the Earth horizon, which could be an additional source of systematic errors.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB230307656/?data_version=h01
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/media/data/GRB230307656/data_files/230308_090913782213_GRB230307656_healpixSysErr_trigdat_h01.fits
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB230307656/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
699896651 at 15:44:06 on 07 March 2023 were 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) = 41.8+/-0.4 deg
Decl.(2000.0) = -71.5+/-0.1 deg
We estimate an additional systematic error of 2 deg.
The position is in agreement with the IPN localization (GCN Circ. 33413).
We note that the determined localization is close to the Earth horizon, which could be an additional source of systematic errors.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB230307656/?data_version=h01
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/media/data/GRB230307656/data_files/230308_090913782213_GRB230307656_healpixSysErr_trigdat_h01.fits
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB230307656/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
