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GRB 120911A

Time: 07:08:33
Trigger Number: 533268
Burst Advocate: John Cannizzo

BAT Data:

RA: a 357.966
23:51:51.8
Dec: a 63.090
63:05:24.0
90% Error Radius: b 1.6
T90: c 17.8
Fluence: d 11 (1)
1s Peak Photon Flux: e 2.7 (0.3)
Photon Index: f 1.71, PL (0.16)

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 120911A

XRT Data:

RA: a 23:51:55.05
Dec: a 63:05:55.7
90% Error Radius: b 1.6
Time to First Observation: c 3333.2
Early Flux: d 10
11 Hour Flux: d 0.027094068
24 Hour Flux: d 0.010295964
Initial Temporal Index: -1.24
Spectral Index (Gamma): 2.0211
Column Density (NH): e 9.03116

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 3323
V Magnitude: V>19.9
Other Filter Magnitudes: B>21.5
U>20.4
UVW1>20.0
UVM2>21.1
UVW2>20.9
White>21.6

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Fermi (GBM)

Comments:

Due to an observing constraint, Swift did not slew until T0+51.6 minutes.
UVOT: no detection

References:

BAT: GCN 13744; GCN 13749
XRT: GCN 13746; GCN 13748; GCN 13750; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13751
Radio:
Redshift:
Host:
Other: GCN Report 393.1