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

GRB 121028A

Redshift:
Host Galaxy:
Other Observatory Detections:

Time: 05:04:31
Trigger Number: 536897
Burst Advocate: Rhaana Starling

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)
271.903
18:07:36.7
-2.298
-02:17:52.8
1.5 3.8 3.7 (0.4) 1.9 (0.3) 1.79, PL (0.17)

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)
18:07:35.87 -02:17:36.9 1.7 129.81 n/a 0.024979528 0.012666976 -0.8704 1.62816 4.77072

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 134 V>18.94 B>19.10
U>19.43
UVW1>19.61
UVW2>19.90
White>21.07

a arcsec; b seconds

Comments:

UVOT: no detection

References:

BAT: GCN 13913; GCN 13917
XRT: GCN 13913; GCN 13918; GCN 13919; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13913; GCN 13950
Radio:
Redshift:
Host:
Other: GCN Report 402.1

BAT Light Curve:

BAT Light Curve for GRBblc/121028A.png