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GRB 151031A

Time: 05:50:30
Trigger Number: 662330
Burst Advocate: Eda Sonbas

BAT Data:

RA: a 83.189
05:32:45.4
Dec: a -39.125
-39:07:30.0
90% Error Radius: b 1.3
T90: c 5.00
Fluence: d 3.2 (0.3)
1s Peak Photon Flux: e 1.7 (0.2)
Photon Index: f 2.41, PL (0.18)

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)

BAT Light Curve:

BAT Light Curve for GRB 151031A

XRT Data:

RA: a 05:32:47.00
Dec: a -39:07:18.6
90% Error Radius: b 1.5
Time to First Observation: c 433.62
Early Flux: d n/a
11 Hour Flux: d 0.035945378
24 Hour Flux: d 0.0213361849
Initial Temporal Index: -0.6686
Spectral Index (Gamma): 2.12551
Column Density (NH): e 9.68804

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 439
V Magnitude: V>20.1
Other Filter Magnitudes: B>20.2
U=20.34
UVW1>20.0
UVM2>20.0
UVW2>21.0
White=20.63

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
1.167 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
VLT, MPG (2.2m)

Comments:

References:

BAT: GCN 18538; GCN 18542
XRT: GCN 18538; GCN 18541; GCN 18544; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 18538; GCN 18546
Radio:
Redshift: GCN 18540 (VLT)
Host:
Other: