GRB 140428A

Time: 22:40:50
Trigger Number: 597519
Burst Advocate: Dan Kocevski

BAT Data:

RA: a 194.365
Dec: a 28.331
90% Error Radius: b 2.2
T90: c 17.42
Fluence: d 3.4 (0.6)
1s Peak Photon Flux: e 0.6 (0.2)
Photon Index: f 1.54, PL (0.26)

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 140428A

XRT Data:

RA: a 12:57:28.45
Dec: a 28:23:06.0
90% Error Radius: b 1.7
Time to First Observation: c n/a
Early Flux: d n/a
11 Hour Flux: d 0.009482607
24 Hour Flux: d 0.0044882823
Initial Temporal Index: -0.9588
Spectral Index (Gamma): 2.9965
Column Density (NH): e 1.7323741

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 104
V Magnitude: V>20.3
Other Filter Magnitudes: B>21.4

a J2000; b arcsec; c seconds

Other Burst Info:

~4.7 (Keck I: estimate)
Host Galaxy:
Other Observatory Detections:
Keck I (10m), OSN (1.5m), MPG (2.2m)


UVOT: no detection


BAT: GCN 16177; GCN 16186
XRT: GCN 16178; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 16187
Redshift: GCN 16181 (Keck I)