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GRB 080928

Time: 15:01:32
Trigger Number: 326115
Burst Advocate: Taka Sakamoto

BAT Data:

RA: a 95.061
06:20:14.6
Dec: a -55.176
-55:10:33.6
90% Error Radius: b 2.3
T90: c 280
Fluence: d 25 (2)
1s Peak Photon Flux: e 2.1 (0.1)
Photon Index: f 1.77, PL (0.12)

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 080928

XRT Data:

RA: a 06:20:16.82
Dec: a -55:11:58.8
90% Error Radius: b 1.4
Time to First Observation: c 169.70
Early Flux: d 577
11 Hour Flux: d 0.06198336
24 Hour Flux: d 0.01471095
Initial Temporal Index: -2.364
Spectral Index (Gamma): 2.13864
Column Density (NH): e 3.23856

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 06:20:16.836
Dec: a -55:11:58.95
90% Error Radius: b 0.5
Time to First Observation: c 161
V Magnitude: V=18.03
Other Filter Magnitudes: B=18.40
U=17.96
UVW1=18.64
UVM2>19.47
UVW2>19.89
White=19.09

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
1.692 (VLT: absorption)
1.69 (Gemini-South: absorption)
Host Galaxy:
Other Observatory Detections:
ROTSE-IIIa, ESO/MPI (2.2m), Gemini-South, VLT, Watcher

Comments:

References:

BAT: GCN 8292; GCN 8294; GCN 8297
XRT: GCN 8292; GCN 8295; GCN 8299; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 8292; GCN 8298
Radio:
Redshift: GCN 8301 (VLT); GCN 8304 (Gemini-South)
Host:
Other: