GRB 151027B

Time: 22:40:40
Trigger Number: 661869
Burst Advocate: Tilan Ukwatta

BAT Data:

RA: a 76.188
Dec: a -6.428
90% Error Radius: b 2.4
T90: c 80.00
Fluence: d 15 (3)
1s Peak Photon Flux: e n/a (n/a)
Photon Index: f 1.83, PL (0.27)

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 151027B

XRT Data:

RA: a 05:04:52.67
Dec: a -06:27:00.7
90% Error Radius: b 1.4
Time to First Observation: c 203.39
Early Flux: d 53.7
11 Hour Flux: d 0.160238208
24 Hour Flux: d 0.062630016
Initial Temporal Index: -5.787
Spectral Index (Gamma): 1.81176
Column Density (NH): e 41.4649

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 210
V Magnitude: V=20.8
Other Filter Magnitudes: B>20.6

a J2000; b arcsec; c seconds

Other Burst Info:

4.063 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
NOT, VLT, MPG (2.2m), MASTER II, HJT (1.5m), Faulkes North (2m), ATCA @ 9 GHz


This is Swift's 1000-th detected burst.


BAT: GCN 18499; GCN 18514
XRT: GCN 18499; GCN 18504; GCN 18509; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 18499; GCN 18517; GCN 18529
Radio: GCN 18548 (ATCA)
Redshift: GCN 18505 (VLT); GCN 18506 (VLT)