Location of GRB210202841

GRB Properties

Parameters calculated by MPE

Property	Value	Error (1 σ statistical)
Trigger Number
Trigger Time	Feb. 02, 2021, 20:10:31
Data Timestamp	Feb. 02, 2021, 20:19:47
Localization Timestamp	Feb. 02, 2021, 21:16:21
Balrog Ra [deg]	223.5	1.5
Balrog Dec [deg]	-35.5	1.0
Error radius 1 σ [deg]	1.3
Error radius 2 σ [deg]	2.4
Estimated systematic error [deg]	2
Fitted Model	cutoff_powerlaw
Spectral Parameter K [photons/cm^2/keV*s]	0.57	0.092
Spectral Parameter Index	-0.54	0.045
Spectral Parameter XC [keV]	2e+02	1e+01
Satellite Phi [deg]	72.79
Satellite Theta [deg]	44.76

Parameters from external Source

Property	Value
Swift Ra [deg]
Swift Dec [deg]
Most likely	None None%
Second most likely	None None%

Download healpix file Download healpix file (with sys error)

GRB Location Alert

GRB 210202A: BALROG localization (Fermi Trigger / GRB 210202841)

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
at 20:10:31 on 02 Feb. 2021 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 (1 sigma statistical errors) is:
RA(2000.0) = 223.5+/-1.5 deg
Decl.(2000.0) = -35.5+/-1.0 deg
We estimate an additional systematic error of 2 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210202841/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210202841/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210202841/json