Location of GRB201215266

GRB Properties

Parameters calculated by MPE

Property	Value	Error (1 σ statistical)
Trigger Number	629706213
Trigger Time	Dec. 15, 2020, 06:23:28
Data Timestamp	Dec. 15, 2020, 06:32:39
Localization Timestamp	Dec. 15, 2020, 06:44:36
Balrog Ra [deg]	192.9	3.8
Balrog Dec [deg]	18.1	3.8
Error radius 1 σ [deg]	5.0
Error radius 2 σ [deg]	9.2
Estimated systematic error [deg]	2
Fitted Model	cutoff_powerlaw
Spectral Parameter K [photons/cm^2/keV*s]	2	1.1
Spectral Parameter Index	-1.1	0.21
Spectral Parameter XC [keV]	1e+02	5e+01
Satellite Phi [deg]	74.91
Satellite Theta [deg]	-5.04

Parameters from external Source

Property	Value
Swift Ra [deg]
Swift Dec [deg]
Most likely	GRB 84.0%
Second most likely	DISTANT_PARTICLES 14.0%

GRB Location Alert

GRB 201215A: BALROG localization (Fermi Trigger 629706213 / GRB 201215266)

J. Burgess, F. Kunzweiler, B. Biltzinger, F. Berlato, & J. Greiner (all MPE Garching) report:

The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
629706213 at 06:23:28 on 15 Dec. 2020 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) = 192.9+/-3.8 deg
Decl.(2000.0) = 18.1+/-3.8 deg
We estimate an additional systematic error of 2 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB201215266/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB201215266/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB201215266/json