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GRB 121031A

Time: 22:50:30
Trigger Number: 537195
Burst Advocate: Valerio D'Elia

BAT Data:

RA: a 170.772
11:23:05.3
Dec: a -3.513
-03:30:46.8
90% Error Radius: b 1.0
T90: c 226
Fluence: d 78 (2)
1s Peak Photon Flux: e 2.4 (0.2)
Photon Index: f 1.50, PL (0.05)

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 121031A

XRT Data:

RA: a 11:23:04.85
Dec: a -03:31:01.3
90% Error Radius: b 1.4
Time to First Observation: c 61.93
Early Flux: d 590
11 Hour Flux: d 0.4371276
24 Hour Flux: d 0.18143619
Initial Temporal Index: -2.484
Spectral Index (Gamma): 2.33292
Column Density (NH): e 5.16924

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 70
V Magnitude: V>1.4
Other Filter Magnitudes: B>20.0
U>19.5
UVW1>20.5
UVM2>21.1
UVW2>20.8
White>20.5

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Fermi (GBM)

Comments:

UVOT: no detection

References:

BAT: GCN 13934; GCN 13936; GCN 13949
XRT: GCN 13934; GCN 13935; GCN 13944; GCN 13946; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13934; GCN 13947
Radio:
Redshift:
Host:
Other: GCN Report 400.1