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GRB 140304A

Redshift:
5.283 (GTC: absorption)
5.28 (NOT: absorption)
Host Galaxy:
Other Observatory Detections:
MASTER II, Nanshan (1m), Mondy (AZT-33IK), Khureltogot (ORI-40), NOT, GTC (10.4m), Fermi (GBM), HJT (1.5m), VLA @ 6 GHz, CARMA @ 3mm, Suzaku

Time: 13:22:31
Trigger Number: 590206
Burst Advocate: Phil Evans

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)
30.653
02:02:36.7
33.480
33:28:48.0
1.0 15.6 12 (1) 1.7 (0.2) 1.29, PL (0.08)

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)
02:02:34.26 33:28:25.7 1.6 75.18 62.8 0.03578112 0.020826288 -0.2235 2.01927 30.237

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 138 V>19.5 U>20.9
UVW1>19.7
UVM2>20.1
UVW2>20.0

a arcsec; b seconds

Comments:

This GRB will enter a Moon observing constraint around 20:00 UT and will not be observable again by Swift until March 6 (Thursday) around 05:30 UT.
UVOT: no detection

References:

BAT: GCN 15915; GCN 15927
XRT: GCN 15915; GCN 15925; GCN 15926; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 15915; GCN 15920
Radio: GCN 15930 (VLA); GCN 15931 (CARMA)
Redshift: GCN 15922 (GTC); GCN 15924 (NOT); GCN 15936 (GTC)
Host:
Other: