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GRB 090912

Time: 15:50:29
Trigger Number: 362633
Burst Advocate: Tilan Ukwatta

BAT Data:

RA: a 188.046
12:32:11.0
Dec: a 61.475
61:28:30.0
90% Error Radius: b 1.2
T90: c 144.0
Fluence: d 45 (3)
1s Peak Photon Flux: e 1.0 (0.1)
Photon Index: f 0.91, CPL (0.44)

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 090912

XRT Data:

RA: a 12:32:10.29
Dec: a 61:29:04.7
90% Error Radius: b 1.4
Time to First Observation: c 793.43
Early Flux: d n/a
11 Hour Flux: d 0.14124195
24 Hour Flux: d 0.07908975
Initial Temporal Index: -0.7433
Spectral Index (Gamma): 2.05631
Column Density (NH): e 5.47353

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 796
V Magnitude: V>19.04
Other Filter Magnitudes: B>19.91
U>19.58
UVW1>19.82
UVM2>19.78
UVW2>19.78
White>21.09

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Zeiss-600

Comments:

UVOT: no detection

References:

BAT: GCN 9905; GCN 9909
XRT: GCN 9905; GCN 9906; GCN 9910; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9905; GCN 9908
Radio:
Redshift:
Host:
Other: GCN Report 251.1