GRB 120817A

Time: 06:49:42
Trigger Number: 531267
Burst Advocate: Ben Gompertz

BAT Data:

RA: a 250.692
Dec: a -38.377
90% Error Radius: b 1.5
T90: c 28.2
Fluence: d 6.9 (0.6)
1s Peak Photon Flux: e 0.8 (0.1)
Photon Index: f 1.97, 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 120817A

XRT Data:

RA: a 16:42:45.38
Dec: a -38:21:16.0
90% Error Radius: b 1.8
Time to First Observation: c 3110.77
Early Flux: d n/a
11 Hour Flux: d 0.0489936
24 Hour Flux: d 0.028357008
Initial Temporal Index: -0.7009
Spectral Index (Gamma): 2.01734
Column Density (NH): e 5.7687

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 3115
V Magnitude: V>20.2
Other Filter Magnitudes: B>21.1

a J2000; b arcsec; c seconds

Other Burst Info:

Host Galaxy:
Other Observatory Detections:
Faulkes North (2m), Faulkes South (2m)


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


BAT: GCN 13661; GCN 13669
XRT: GCN 13662; GCN 13667; GCN 13673; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13701
Other: GCN Report 385.1