GRB 140304A

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

BAT Data:

RA: a 30.653
Dec: a 33.480
90% Error Radius: b 1.0
T90: c 15.6
Fluence: d 12 (1)
1s Peak Photon Flux: e 1.7 (0.2)
Photon Index: f 1.29, PL (0.08)

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 140304A

XRT Data:

RA: a 02:02:34.26
Dec: a 33:28:25.7
90% Error Radius: b 1.6
Time to First Observation: c 75.18
Early Flux: d 62.8
11 Hour Flux: d 0.03578112
24 Hour Flux: d 0.020826288
Initial Temporal Index: -0.2235
Spectral Index (Gamma): 2.01927
Column Density (NH): e 30.237

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 138
V Magnitude: V>19.5
Other Filter Magnitudes: U>20.9

a J2000; b arcsec; c seconds

Other Burst Info:

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


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


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)