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GRB 221226B

Time: 22:41:20
Trigger Number: 1145959
Burst Advocate: Brad Cenko

BAT Data:

RA: a 22.903
01:31:36.7
Dec: a -41.515
-41:30:54.0
90% Error Radius: b 1.2
T90: c 3.44
Fluence: d 5.4 (0.5)
1s Peak Photon Flux: e 2.6 (0.3)
Photon Index: f 1.16, PL (0.13)

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)

XRT Data:

RA: a 01:31:38.07
Dec: a -41:31:36.0
90% Error Radius: b 2
Time to First Observation: c 102.93
Early Flux: d n/a
11 Hour Flux: d 0.0010457022
24 Hour Flux: d 0.000306760044
Initial Temporal Index: -1.572
Spectral Index (Gamma): 1.59023
Column Density (NH): e 13.5415

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 76
V Magnitude: V>19.3
Other Filter Magnitudes: B>20.0
U>20.1
UVW1>20.0
UVM2>19.5
UVW2>20.0
White=20.54

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
2.694 (VLT: absorption)
Host Galaxy:
r=23.82 (Legacy Survey)
Other Observatory Detections:
Fermi (GBM), VLT

Comments:

References:

BAT: GCN 33108; GCN 33115
XRT: GCN 33108; GCN 33109; GCN 33111; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33108; GCN 33114
Radio:
Redshift: GCN 33110 (VLT)
Host: GCN 33110 (VLT)
Other: