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GRB 201104B

Time: 17:33:46
Trigger Number: 1004168
Burst Advocate: Boris Sbarufatti

BAT Data:

RA: a 5.215
00:20:51.6
Dec: a 7.834
07:50:02.4
90% Error Radius: b 1.0
T90: c 8.66
Fluence: d 18 (1)
1s Peak Photon Flux: e 4.1 (0.3)
Photon Index: f 1.47, PL (0.07)

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 00:20:51.46
Dec: a 07:50:30.7
90% Error Radius: b 2.3
Time to First Observation: c 102
Early Flux: d n/a
11 Hour Flux: d 0.10315026
24 Hour Flux: d 0.040745718
Initial Temporal Index: -0.1109
Spectral Index (Gamma): 1.55046
Column Density (NH): e 5.37756

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 00:20:51.65
Dec: a 07:50:29.4
90% Error Radius: b 0.43
Time to First Observation: c 56
V Magnitude: n/a
Other Filter Magnitudes: B>19.0
U_fc=18.72
White_fc=17.98
White>21.1

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
1.954 (VLT: absorption & emission)
Host Galaxy:
Other Observatory Detections:
VLT, TSHAO Zeiss-1000 (1m), Kitab-ISON RC-36, DFOT (1.3m), MITSuME (50cm)

Comments:

References:

BAT: GCN 28825; GCN 28839
XRT: GCN 28825; GCN 28850; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 28827; GCN 28851
Radio:
Redshift: GCN 28840 (VLT)
Host:
Other: