Location of GRB201104001

GRB Properties

Parameters calculated by MPE

Property	Value	Error (1 σ statistical)
Trigger Number	626140861
Trigger Time	Nov. 04, 2020, 00:00:56
Data Timestamp	Nov. 04, 2020, 01:03:32
Localization Timestamp	Nov. 04, 2020, 02:02:01
Balrog Ra [deg]	67.9	10.4
Balrog Dec [deg]	-73.2	1.6
Error radius 1 σ [deg]	4.5
Error radius 2 σ [deg]	4.7
Estimated systematic error [deg]	2
Fitted Model	cutoff_powerlaw
Spectral Parameter K [photons/cm^2/keV*s]	0.62	0.1
Spectral Parameter Index	-0.84	0.038
Spectral Parameter XC [keV]	1e+03	2e+02
Satellite Phi [deg]	-94.05
Satellite Theta [deg]	28.23

Parameters from external Source

Property	Value
Swift Ra [deg]
Swift Dec [deg]
Most likely	GRB 95.0%
Second most likely	GENERIC_TRANSIENT 4.0%

GRB Location Alert

GRB 201104A: BALROG localization (Fermi Trigger 626140861 / GRB 201104001)

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

The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
626140861 at 00:00:56 on 04 Nov. 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) = 67.9+/-10.4 deg
Decl.(2000.0) = -73.2+/-1.6 deg
We estimate an additional systematic error of 2 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB201104001/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB201104001/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB201104001/json