GRB 120403B

Time: 20:33:56
Trigger Number: 519256
Burst Advocate: Valerio D'Elia

BAT Data:

RA: a	54.302 03:37:12.5
Dec: a	-89.029 -89:01:44.4
90% Error Radius: b	2.4
T90: c	7.3
Fluence: d	2.1 (0.4)
1s Peak Photon Flux: e	0.9 (0.2)
Photon Index: f	1.79, PL (0.31)

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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	03:41:06.77
Dec: a	-89:00:31.0
90% Error Radius: b	2.2
Time to First Observation: c	907.51
Early Flux: d	n/a
11 Hour Flux: d	0.028047355
24 Hour Flux: d	0.014885045
Initial Temporal Index:	-0.8121
Spectral Index (Gamma):	2.21248
Column Density (NH): e	2.30413

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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	910
V Magnitude:	V>20.7
Other Filter Magnitudes:	B>21.3 U>21.1 UVW1>21.1 UVM2>20.8 UVW2>21.0 White>22.0

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^a J2000; ^b arcsec; ^c seconds

Comments:

Because of an observing constraint, the slew to the burst was delayed by 12.9 minutes.
UVOT: no detection

References:

BAT: GCN 13203; GCN 13207
XRT: GCN 13203; GCN 13205; GCN 13223; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13203; GCN 13206
Radio:
Redshift:
Host:
Other: GCN Report 388.1