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GRB 171020A

Time: 23:07:10
Trigger Number: 780845
Burst Advocate: Kim Page

BAT Data:

RA: a 39.260
02:37:02.4
Dec: a 15.199
15:11:56.4
90% Error Radius: b 1.8
T90: c 41.9
Fluence: d 12 (1)
1s Peak Photon Flux: e 0.7 (0.2)
Photon Index: f 1.04, PL (0.20)

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 02:36:59.61
Dec: a 15:12:14.9
90% Error Radius: b 1.4
Time to First Observation: c 144.45
Early Flux: d n/a
11 Hour Flux: d 0.04986495
24 Hour Flux: d 0.025179252
Initial Temporal Index: -2.315
Spectral Index (Gamma): 1.69134
Column Density (NH): e 1.71087

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 n/a
Dec: a n/a
90% Error Radius: b n/a
Time to First Observation: c 147
V Magnitude: V>19.4
Other Filter Magnitudes: B>20.8
U>20.2
UVW1>20.7
UVM2>20.3
UVW2>20.3
White>21.4

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
1.87 (NOT: absorption)
Host Galaxy:
Other Observatory Detections:
NOT, SAO RAS (1.0m), Liverpool (2m), HJT (1.5m), TAROT (25cm)

Comments:

References:

BAT: GCN 22028; GCN 22038
XRT: GCN 22028; GCN 22034; GCN 22035; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 22028; GCN 22040
Radio:
Redshift: GCN 22039 (NOT)
Host:
Other: