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GRB 180721A

Time: 11:06:48
Trigger Number: 849018
Burst Advocate: Boris Sbarufatti

BAT Data:

RA: a 347.708
23:10:49.9
Dec: a 4.871
04:52:15.6
90% Error Radius: b 1.8
T90: c 47.6
Fluence: d 5.9 (0.9)
1s Peak Photon Flux: e 0.9 (0.1)
Photon Index: f 1.25, PL (0.22)

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 23:10:50.61
Dec: a 04:51:23.1
90% Error Radius: b 2.2
Time to First Observation: c 56.90
Early Flux: d 73.8
11 Hour Flux: d 0.0163681682
24 Hour Flux: d 0.0078133843
Initial Temporal Index: -0.9479
Spectral Index (Gamma): 2.13857
Column Density (NH): e 1.391049

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 120
V Magnitude: V>19.1
Other Filter Magnitudes: B>19.9
U>20.1
UVW1>19.6
UVM2>18.3
UVW2>20.5

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:

Comments:

UVOT: no detection

References:

BAT: GCN 22994; GCN 23001
XRT: GCN 22994; GCN 22997; GCN 22999; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 22994; GCN 23014
Radio:
Redshift:
Host:
Other: