GRB 131031A

Time: 11:33:31
Trigger Number: 576277
Ground Analysis
Burst Advocate: Jay Cummings

BAT Data:

RA: a 29.618
Dec: a -1.603
90% Error Radius: b 4
T90: c n/a
Fluence: d n/a (n/a)
1s Peak Photon Flux: e n/a (n/a)
Photon Index: f n/a (n/a)

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 01:58:26.45
Dec: a -01:34:43.7
90% Error Radius: b 4.7
Time to First Observation: c 39700
Early Flux: d n/a
11 Hour Flux: d 0.04421647
24 Hour Flux: d 0.022645606
Initial Temporal Index: -0.8577
Spectral Index (Gamma): 1.67764
Column Density (NH): e 0.239000714971

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

UVOT Data:

RA: a n/a
Dec: a n/a
90% Error Radius: b n/a
Time to First Observation: c 39700
V Magnitude: V>20.1
Other Filter Magnitudes: U>21.1

a J2000; b arcsec; c seconds

Other Burst Info:

Host Galaxy:
Other Observatory Detections:
CAHA (1.23m), Konus-Wind, Fermi (GBM), HJT (1.5m), AZT-33IK


UVOT: no detection


BAT: GCN 15421
XRT: GCN 15424; GCN 15461; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 15433