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GRB 150811A

Time: 04:06:09
Trigger Number: 651882
Burst Advocate: Phil Evans

BAT Data:

RA: a 291.347
19:25:23.3
Dec: a -15.434
-15:26:02.4
90% Error Radius: b 1.9
T90: c 34.00
Fluence: d 4.9 (0.8)
1s Peak Photon Flux: e 0.5 (0.2)
Photon Index: f 2.13, 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 150811A

XRT Data:

RA: a 19:25:21.40
Dec: a -15:25:30.6
90% Error Radius: b 1.5
Time to First Observation: c 141.60
Early Flux: d 45.9
11 Hour Flux: d 0.0274689848
24 Hour Flux: d 0.0110890464
Initial Temporal Index: -2.516
Spectral Index (Gamma): 2.06721
Column Density (NH): e 2.183077

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 19:25:21.4
Dec: a -15:25:31.1
90% Error Radius: b 0.6
Time to First Observation: c 148
V Magnitude: V=18.89
Other Filter Magnitudes: U=18.83
B=19.31
UVW1>20.6
UVM2>21.1
UVW2>20.5
White=19.16

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
HJT (1.5m), KAIT (0.76m), McDonald (1m), Palomar (60"), Zeiss-1000 (1m), VLA @ 21.8 GHz

Comments:

References:

BAT: GCN 18119; GCN 18129
XRT: GCN 18119; GCN 18124; GCN 18127; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 18119; GCN 18122; GCN 18131
Radio: GCN 18134 (VLA)
Redshift:
Host:
Other: