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GRB 181020A

Time: 19:00:33
Trigger Number: 867987
Burst Advocate: Mike Moss

BAT Data:

RA: a 13.987
00:55:56.9
Dec: a -47.372
-47:22:19.2
90% Error Radius: b 1.0
T90: c 238.0
Fluence: d 81 (3)
1s Peak Photon Flux: e 7.7 (0.3)
Photon Index: f 1.25, PL (0.06)

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 00:55:55.78
Dec: a -47:22:50.4
90% Error Radius: b 1.4
Time to First Observation: c 55.57
Early Flux: d 604
11 Hour Flux: d 0.35862288
24 Hour Flux: d 0.060276048
Initial Temporal Index: -0.8014
Spectral Index (Gamma): 1.93674
Column Density (NH): e 0.453975

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 00:55:55.77
Dec: a -47:22:51.9
90% Error Radius: b 0.45
Time to First Observation: c 122
V Magnitude: V=14.89
Other Filter Magnitudes: B
17.18
U=17.60
UVW1>18.20
UVM2>18.06
UVW2>18.56

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
2.938 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
Fermi (LAT & GBM), VLT, LCO (1m), MASTER-SAAO, REM (60cm), Konus-Wind

Comments:

References:

BAT: GCN 23349; GCN 23357
XRT: GCN 23349; GCN 23351; GCN 23353; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 23349; GCN 23360
Radio:
Redshift: GCN 23356 (VLT)
Host:
Other: