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GRB 081029

Time: 01:43:56
Trigger Number: 332931
Burst Advocate: Taka Sakamoto

BAT Data:

RA: a 346.776
23:07:06.2
Dec: a -68.179
-68:10:44.4
90% Error Radius: b 2.2
T90: c 270
Fluence: d 21 (2)
1s Peak Photon Flux: e 0.5 (0.2)
Photon Index: f 1.43, 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 081029

XRT Data:

RA: a 23:07:05.58
Dec: a -68:09:20.2
90% Error Radius: b 1.4
Time to First Observation: c 2702.93
Early Flux: d n/a
11 Hour Flux: d 0.0569576
24 Hour Flux: d 0.007489755
Initial Temporal Index: -0.4869
Spectral Index (Gamma): 1.95818
Column Density (NH): e 3.14084

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 23:07:05.35
Dec: a -68:09:19.8
90% Error Radius: b 0.5
Time to First Observation: c 2708
V Magnitude: V=18.66
Other Filter Magnitudes: B=20.05
U>21.9
UVW1>21.8
UVM2>21.7
UVW2>21.7
White=19.41

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
3.8479 (VLT: absorption, host)
3.847 (Gemini-South: absorption)
Host Galaxy:
Other Observatory Detections:
ROTSE-IIIc, ESO/MPI (2.2m), VLT, REM (60cm), Gemini-South, PROMPT (16"), CTIO (1.3m)

Comments:

Due to an observing constraint, Swift will not slew until T0+41.3 minutes.

References:

BAT: GCN 8435; GCN 8447
XRT: GCN 8443; GCN 8446; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 8450
Radio:
Redshift: GCN 8438 (VLT); GCN 8448 (Gemini-South)
Host:
Other: