GRB 091109B

Time: 21:49:03
Trigger Number: 375409
Burst Advocate: Sam Oates

BAT Data:

RA: a	112.750 07:31:00.0
Dec: a	-54.092 -54:05:31.2
90% Error Radius: b	1.2
T90: c	0.3
Fluence: d	1.9 (0.2)
1s Peak Photon Flux: e	5.4 (0.4)
Photon Index: f	0.71, PL (0.13)

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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:

XRT Data:

RA: a	07:30:56.66
Dec: a	-54:05:24.6
90% Error Radius: b	2.4
Time to First Observation: c	78.16
Early Flux: d	n/a
11 Hour Flux: d	0.008569311
24 Hour Flux: d	0.004939574
Initial Temporal Index:	-0.7061
Spectral Index (Gamma):	2.055
Column Density (NH): e	1.891042

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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	296
V Magnitude:	V>20.96
Other Filter Magnitudes:	B>21.78 U>21.61 UVW1>21.44 UVM2>20.87 UVW2>20.52 White>22.09

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^a J2000; ^b arcsec; ^c seconds

Comments:

UVOT: no detection

References:

BAT: GCN 10148; GCN 10152
XRT: GCN 10148; GCN 10151; GCN 10155; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 10148; GCN 10157
Radio:
Redshift:
Host:
Other: GCN Report 259.1