GRB 140311A

Time: 21:05:16
Trigger Number: 591390
Burst Advocate: Judy Racusin

BAT Data:

RA: a 209.293
Dec: a 0.607
90% Error Radius: b 3.8
T90: c 71.4
Fluence: d 23 (3)
1s Peak Photon Flux: e 1.3 (0.5)
Photon Index: f 1.67, PL (0.23)

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 140311A

XRT Data:

RA: a 13:57:13.25
Dec: a 00:38:30.8
90% Error Radius: b 1.5
Time to First Observation: c 9500
Early Flux: d n/a
11 Hour Flux: d 0.1014624
24 Hour Flux: d 0.036819588
Initial Temporal Index: -1.299
Spectral Index (Gamma): 1.62664
Column Density (NH): e 0.0000000000139543

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 9540
V Magnitude: V>19.0
Other Filter Magnitudes: B>21.3

a J2000; b arcsec; c seconds

Other Burst Info:

4.95 (Gemini-South: absorption)
~ 5 (NOT: absorption)
4.954 (Gemini-North)
Host Galaxy:
Other Observatory Detections:
Nanshan (1m), Zadko (100cm), NOT, Kottamia (188cm), Gemini-South, Gemini-North, HJT (1.5m), VLA @ 21.8 GHz


Due to an observing constraint, Swift did not slew until T0+50.6 minutes
UVOT: no detection


BAT: GCN 15944; GCN 15962
XRT: GCN 15959; GCN 15968; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 15973
Radio: GCN 15985 (VLA)
Redshift: GCN 15961 (Gemini-South); GCN 15964 (NOT); GCN 15966 (Gemini-North)