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GRB 120311A

Time: 05:33:38
Trigger Number: 517469
Burst Advocate: Craig Markwardt

BAT Data:

RA: a 273.075
18:12:18.0
Dec: a 14.297
14:17:49.2
90% Error Radius: b 1.1
T90: c 3.5
Fluence: d 3.0 (0.3)
1s Peak Photon Flux: e 3.2 (0.2)
Photon Index: f 2.30, PL (0.15)

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 120311A

XRT Data:

RA: a 18:12:22.11
Dec: a 14:17:46.4
90% Error Radius: b 1.5
Time to First Observation: c 3161.63
Early Flux: d n/a
11 Hour Flux: d 0.03487688
24 Hour Flux: d 0.01573496
Initial Temporal Index: -1.02
Spectral Index (Gamma): 1.99694
Column Density (NH): e 2.47934

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 3164
V Magnitude: V>15.8
Other Filter Magnitudes: B>16.4
U>16.3
UVW1>17.7
UVM2>19.0
UVW2>19.2
White>16.5

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Liverpool (2m), CAHA (1.23m), MPI/ESO (2.2m), VLT

Comments:

Due to an observing constraint, Swift did not slew until T0+50.1 minutes.
UVOT: no detection

References:

BAT: GCN 13032; GCN 13039
XRT: GCN 13034; GCN 13035; GCN 13043; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13037
Radio:
Redshift:
Host:
Other: