This is the Analysis page for GRB201218177: GRB201218177

Version History of Data Files: v01 v00

GRB Properties

Parameters calculated by MPE

Property Value Error (1 σ statistical)
Trigger Number 629957660
Trigger Time Dec. 18, 2020, 04:14:15
Data Timestamp Dec. 18, 2020, 04:23:41
Localization Timestamp Dec. 18, 2020, 04:43:45
Balrog Ra [deg] 287.4 0.3
Balrog Dec [deg] 26.8 0.3
Error radius 1 σ [deg] 0.4
Error radius 2 σ [deg] 0.7
Estimated systematic error [deg] 1
Fitted Model cutoff_powerlaw
Spectral Parameter K [photons/cm^2/keV*s] 6.9 0.22
Spectral Parameter Index -0.89 0.0082
Spectral Parameter XC [keV] 5e+02 1e+01
Satellite Phi [deg] -15.78
Satellite Theta [deg] -7.92

Parameters from external Source

Property Value
Swift Ra [deg]
Swift Dec [deg]
Most likely GRB 80.0%
Second most likely CYG_X1 15.0%

GRB Location Alert

GRB 201218A: BALROG localization (Fermi Trigger 629957660 / GRB 201218177)


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
629957660 at 04:14:15 on 18 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) = 287.38+/-0.29 deg
Decl.(2000.0) = 26.80+/-0.30 deg
We estimate an additional systematic error of 1 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB201218177/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB201218177/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB201218177/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

data/GRB201218177/plots/201218_044416703743_GRB201218177_lightcurve_trigdat_detector_b0_plot_v00.png
Lightcurve detector b0
data/GRB201218177/plots/201218_044416478285_GRB201218177_lightcurve_trigdat_detector_b1_plot_v00.png
Lightcurve detector b1
data/GRB201218177/plots/201218_044419405912_GRB201218177_lightcurve_trigdat_detector_n0_plot_v00.png
Lightcurve detector n0
data/GRB201218177/plots/201218_044419200229_GRB201218177_lightcurve_trigdat_detector_n1_plot_v00.png
Lightcurve detector n1
data/GRB201218177/plots/201218_044418975609_GRB201218177_lightcurve_trigdat_detector_n2_plot_v00.png
Lightcurve detector n2
data/GRB201218177/plots/201218_044418727885_GRB201218177_lightcurve_trigdat_detector_n3_plot_v00.png
Lightcurve detector n3
data/GRB201218177/plots/201218_044418482198_GRB201218177_lightcurve_trigdat_detector_n4_plot_v00.png
Lightcurve detector n4
data/GRB201218177/plots/201218_044418289689_GRB201218177_lightcurve_trigdat_detector_n5_plot_v00.png
Lightcurve detector n5
data/GRB201218177/plots/201218_044418093200_GRB201218177_lightcurve_trigdat_detector_n6_plot_v00.png
Lightcurve detector n6
data/GRB201218177/plots/201218_044417859767_GRB201218177_lightcurve_trigdat_detector_n7_plot_v00.png
Lightcurve detector n7
data/GRB201218177/plots/201218_044417632590_GRB201218177_lightcurve_trigdat_detector_n8_plot_v00.png
Lightcurve detector n8
data/GRB201218177/plots/201218_044417404422_GRB201218177_lightcurve_trigdat_detector_n9_plot_v00.png
Lightcurve detector n9
data/GRB201218177/plots/201218_044417177108_GRB201218177_lightcurve_trigdat_detector_na_plot_v00.png
Lightcurve detector na
data/GRB201218177/plots/201218_044416944501_GRB201218177_lightcurve_trigdat_detector_nb_plot_v00.png
Lightcurve detector nb