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

GRB 121017A

Redshift:
Host Galaxy:
Other Observatory Detections:

Time: 19:23:28
Trigger Number: 536172
Burst Advocate: Dirk Grupe

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)
288.820
19:15:16.8
-1.602
-01:36:07.2
1.5 4.2 6.6 (0.7) 3.3 (0.4) 1.74, 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)
19:15:19.22 -01:36:16.3 1.4 95.25 n/a 0.08171415 0.038633175 -0.9602 2.14409 6.10587

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 1141 V>18.5 B>19.1
U>18.6
UVW1>18.1
UVW2>18.1
White>21.2

a arcsec; b seconds

Comments:

XRT and UVOT detections were delayed due to entry into the SAA shortly after the initial trigger.
UVOT: no detection

References:

BAT: GCN 13875; GCN 13880
XRT: GCN 13875; GCN 13879; GCN 13882; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13875; GCN 13883
Radio:
Redshift:
Host:
Other: GCN Report 398.1

BAT Light Curve:

BAT Light Curve for GRBblc/121017A.png