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GRB 180404A

Time: 00:45:35
Trigger Number: 821881
Burst Advocate: Jeff Gropp

BAT Data:

RA: a 83.540
05:34:09.6
Dec: a -37.168
-37:10:04.8
90% Error Radius: b 1.1
T90: c 35.2
Fluence: d 13 (1)
1s Peak Photon Flux: e 1.3 (0.2)
Photon Index: f 1.95, PL (0.12)

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 05:34:11.74
Dec: a -37:10:04.8
90% Error Radius: b 1.9
Time to First Observation: c 86.46
Early Flux: d n/a
11 Hour Flux: d 0.066478159
24 Hour Flux: d 0.04346353
Initial Temporal Index: -0.5447
Spectral Index (Gamma): 1.62007
Column Density (NH): e 0.307114640277

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

» XRT GRB Live Catalogue
» XRT Light Curves
» XRT Spectra

UVOT Data:

RA: a 05:34:11.64
Dec: a -37:10:03.9
90% Error Radius: b 0.50
Time to First Observation: c 90
V Magnitude: V>18.9
Other Filter Magnitudes: B>19.4
U=18.95
UVW1>17.8
UVM2>17.4
UVW2=19.45
White=19.34

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
1.000 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
VLT, MASTER-OAFA, Faulkes South (2m)

Comments:

References:

BAT: GCN 22589; GCN 22599
XRT: GCN 22589; GCN 22592; GCN 22602; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 22589; GCN 22605
Radio:
Redshift: GCN 22591 (VLT)
Host:
Other: