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GRB 090831C

Time: 21:30:25
Trigger Number: 361489
Burst Advocate: Patricia Schady

BAT Data:

RA: a 108.294
07:13:10.6
Dec: a -25.112
-25:06:43.2
90% Error Radius: b 2.1
T90: c 3.3
Fluence: d 1.5 (0.3)
1s Peak Photon Flux: e 0.5 (0.1)
Photon Index: f 1.33, PL (0.29)

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 090831C

XRT Data:

RA: a 07:13:10.63
Dec: a -25:07:07.2
90% Error Radius: b 1.5
Time to First Observation: c 118.46
Early Flux: d n/a
11 Hour Flux: d 0.019837546
24 Hour Flux: d 0.009116418
Initial Temporal Index: -0.9966
Spectral Index (Gamma): 1.84886
Column Density (NH): e 3.49511

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 120
V Magnitude: V>18.47
Other Filter Magnitudes: B>19.30
U>19.95
UVW1>18.74
UVM2>18.48
UVW2>18.95
White>20.73

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:

Comments:

UVOT: no detection

References:

BAT: GCN 9854; GCN 9863
XRT: GCN 9854; GCN 9855; GCN 9857; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9854; GCN 9859
Radio:
Redshift:
Host:
Other: GCN Report 239.1