The Swift Gamma-Ray Burst Mission Italian site U.K. site

GRB 121108A

Redshift:
Host Galaxy:
Other Observatory Detections:

Time: 17:47:39
Trigger Number: 537921
Burst Advocate: Tilan Ukwatta

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)
83.216
05:32:51.8
54.520
54:31:12.0
2.2 89 9.6 (1.2) 1.6 (0.2) 2.28, PL (0.20)

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)
05:32:46.58 54:28:24.6 1.5 54.17 196 0.02135435 0.005831696 -0.9944 1.6975 2.276799

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 64 V>19.6 B>19.9
U>20.6
UVW1>19.6
UVM2>19.6
UVW2>19.8
White>21.3

a arcsec; b seconds

Comments:

UVOT: no detection

References:

BAT: GCN 13952; GCN 13961
XRT: GCN 13952; GCN 13959; GCN 13963; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13952; GCN 13962
Radio:
Redshift:
Host:
Other: GCN Report 417.1

BAT Light Curve:

BAT Light Curve for GRBblc/121108A.png