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GRB 190204A

Time: 05:46:01
Trigger Number: 887579
887580
Burst Advocate: Amy Lien

BAT Data:

RA: a 351.491
23:25:57.8
Dec: a 54.884
54:53:02.4
90% Error Radius: b 1.0
T90: c 26.4
Fluence: d 130 (3)
1s Peak Photon Flux: e 30.5 (0.9)
Photon Index: f 1.30, PL (0.04)

90% error in parentheses,
a J2000; b arcmin; c seconds; d 10-7 erg/cm2 (15-150 keV); e ph/cm2/sec (15-150 keV); f PL = simple power-law, CPL = cutoff power-law (15-150 keV)

XRT Data:

RA: a 23:25:54.72
Dec: a 54:52:34.8
90% Error Radius: b 1.4
Time to First Observation: c 75.03
Early Flux: d 572
11 Hour Flux: d 0.097754265
24 Hour Flux: d 0.0295989939
Initial Temporal Index: -0.8629
Spectral Index (Gamma): 1.88087
Column Density (NH): e 5.259994

Note: Please be aware that only the very basic temporal and spectral quantities are reported here. You are strongly encouraged to see the referenced GCN circulars for full details.
a J2000; b arcsec; c seconds; d 10-11 erg/cm2/s (0.3-10 keV); e 1021 cm-2

UVOT Data:

RA: a 23:25:54.58
Dec: a 54:52:35.1
90% Error Radius: b 0.4
Time to First Observation: c 84
V Magnitude: V=18.30
Other Filter Magnitudes: B=19.29
U=17.85
UVW1>18.3
UVM2>19.5
UVW2>18.7
White=16.84

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
MAXI/GSC, AstroSat CZTI, COATLI (50cm), SAO RAS Zeiss-1000, Konus-Wind, CALET

Comments:

This GRB resulted in two BAT triggers in the on-board processing (#887579 at 05:46:01 and #887580 at 05:46:06). We adopt the first trigger number and time as T0.

References:

BAT: GCN 23852; GCN 23872
XRT: GCN 23852; GCN 23857; GCN 23862; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 23852; GCN 23863
Radio:
Redshift:
Host:
Other: