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GRB 120817A

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

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

Burst Alert Telescope (BAT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
T90 b Fluence c
(15-150 keV)
1-sec Peak d
Photon Flux
(15-150 keV)
Photon Index e
(15-150 keV)
250.692
16:42:46.1
-38.377
-38:22:37.2
1.5 28.2 6.9 (0.6) 0.8 (0.1) 1.97, PL (0.16)

90% error in parentheses,
a arcmin; b seconds; c 10-7 erg/cm2; d ph/cm2/sec; e PL = simple power-law, CPL = cutoff power-law

X-Ray Telescope (XRT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
Time to First b
Observation
Early Flux c
(0.3-10 keV)
11 Hour Flux c
(0.3-10 keV)
24 Hour Flux c
(0.3-10 keV)
Initial d
LC Index
Spectral
Index
(Gamma)
Column e
Density
(NH)
16:42:45.38 -38:21:16.0 1.8 3110.77 n/a 0.0489936 0.028357008 -0.7009 2.01734 5.7687

a arcsec; b seconds; c 10-11 erg/cm2/s; d temporal; e 1021 cm-2

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.

» XRT GRB Live Catalogue
» XRT Light Curves
» XRT Spectra

UltraViolet/Optical Telescope (UVOT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
Time to First b
Observation
Magnitude Other Filter
Magnitudes
n/a n/a n/a 3115 V>20.2 B>21.1
U>21.1
UVW1>20.3
UVM2>20.2
UVW2>20.0
White>20.4

a arcsec; b seconds

Comments:

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

References:

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

BAT Light Curve:

BAT Light Curve for GRBblc/120817A.png