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GRB 081228

Time: 01:17:40
Trigger Number: 338338
Burst Advocate: Kim Page

BAT Data:

RA: a 39.477
02:37:54.5
Dec: a 30.833
30:49:58.8
90% Error Radius: b 2.3
T90: c 3.0
Fluence: d 0.89 (0.18)
1s Peak Photon Flux: e 0.6 (0.1)
Photon Index: f 2.10, PL (0.31)

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 081228

XRT Data:

RA: a 02:37:50.96
Dec: a 30:51:10.1
90% Error Radius: b 2.2
Time to First Observation: c 77.99
Early Flux: d n/a
11 Hour Flux: d 0.011170189
24 Hour Flux: d 0.006971984
Initial Temporal Index: -0.6042
Spectral Index (Gamma): 2.00625
Column Density (NH): e 1.476931

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 82
V Magnitude: V>19.3
Other Filter Magnitudes: B>20.3
U>20.0
UVW1>20.0
UVM2>20.0
UVW2>20.9
White>20.7

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
ESO/MPI (2.2m)

Comments:

UVOT: no detection

References:

BAT: GCN 8742; GCN 8749
XRT: GCN 8742; GCN 8744; GCN 8746; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 8742; GCN 8747
Radio:
Redshift:
Host:
Other: GCN Report 188.1