The Swift Gamma-Ray Burst Mission Italian site U.K. site

GRB 120403B

Redshift:
Host Galaxy:
Other Observatory Detections:
Fermi (GBM)

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

Burst Alert Telescope (BAT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
T90 b Fluence c
(15-150 keV)
1-sec Peak d
Photon Flux
(15-150 keV)
Photon Index e
(15-150 keV)
54.302
03:37:12.5
-89.029
-89:01:44.4
2.4 7.3 2.1 (0.4) 0.9 (0.2) 1.79, PL (0.31)

90% error in parentheses,
a arcmin; b seconds; c 10-7 erg/cm2; d ph/cm2/sec; e PL = simple power-law, CPL = cutoff power-law

X-Ray Telescope (XRT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
Time to First b
Observation
Early Flux c
(0.3-10 keV)
11 Hour Flux c
(0.3-10 keV)
24 Hour Flux c
(0.3-10 keV)
Initial d
LC Index
Spectral
Index
(Gamma)
Column e
Density
(NH)
03:41:06.77 -89:00:31.0 2.2 907.51 n/a 0.028047355 0.014885045 -0.8121 2.21248 2.30413

a arcsec; b seconds; c 10-11 erg/cm2/s; d temporal; e 1021 cm-2

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.

» XRT GRB Live Catalogue
» XRT Light Curves
» XRT Spectra

UltraViolet/Optical Telescope (UVOT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
Time to First b
Observation
Magnitude Other Filter
Magnitudes
n/a n/a n/a 910 V>20.7 B>21.3
U>21.1
UVW1>21.1
UVM2>20.8
UVW2>21.0
White>22.0

a arcsec; b 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

BAT Light Curve:

BAT Light Curve for GRBblc/120403B.png