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GRB 170822A

Time: 09:11:51
Trigger Number: 768939
Burst Advocate: Andrea Melandri

BAT Data:

RA: a 94.375
06:17:30.0
Dec: a 55.000
55:00:00.0
90% Error Radius: b 2.1
T90: c 64
Fluence: d 64 (4)
1s Peak Photon Flux: e 4.2 (0.7)
Photon Index: f 1.80, PL (0.09)

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 06:17:32.73
Dec: a 55:00:15.1
90% Error Radius: b 1.4
Time to First Observation: c 163.18
Early Flux: d 228
11 Hour Flux: d 0.127892586
24 Hour Flux: d 0.029283846
Initial Temporal Index: -1.292
Spectral Index (Gamma): 1.8366
Column Density (NH): e 3.54868

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 171
V Magnitude: V>1.2
Other Filter Magnitudes: B>20.2
U>19.8
UVW1>19.7
UVM2>18.1
UVW2>19.9
White>21.3

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
BOOTES-5/JGT (60cm)

Comments:

UVOT: no detection

References:

BAT: GCN 21640; GCN 21651
XRT: GCN 21640; GCN 21643; GCN 21647; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 21640; GCN 21649
Radio:
Redshift:
Host:
Other: