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GRB 251017A

Time: 08:40:44
Trigger Number: 1404904
Burst Advocate: Rahul Gupta

BAT Data:

RA: a 335.404
22:21:37.0
Dec: a 7.048
07:02:52.8
90% Error Radius: b 1.3
T90: c 116.90
Fluence: d 12 (1)
1s Peak Photon Flux: e 1.3 (0.2)
Photon Index: f 1.40, PL (0.30)

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 22:21:36.32
Dec: a 07:02:24.3
90% Error Radius: b 1.9
Time to First Observation: c 109.53
Early Flux: d 203
11 Hour Flux: d 0.045916428
24 Hour Flux: d 0.0202727463
Initial Temporal Index: -1.048
Spectral Index (Gamma): 2.093820194
Column Density (NH): e 1.912663337

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 22:21:36.24
Dec: a 07:02:23.6
90% Error Radius: b 0.77
Time to First Observation: c 98
V Magnitude: V>18.8
Other Filter Magnitudes: B>19.6
U>20.3
UVW1>18.5
UVW2>20.4
White=20.09

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
4.34 (COLIBRÍ: photometric)
4.327 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
BOOTES-5/JG, COLIBRÍ, MITSuME (50cm), JinShan, Glowbug, Palomar (1m), OHP/T193, SVOM (VT), VLT, Belesta Observatory (820mm), INASAN-Kislovodsk, Mondy AZT-33IK (1.5m), Koshka Zeiss-1000 (1m)

Comments:

References:

BAT: GCN 42322; GCN 42366
XRT: GCN 42322; GCN 42326; GCN 42347; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 42322; GCN 42355
Radio:
Redshift: GCN 42348 (COLIBRÍ); GCN 42350 (VLT)
Host:
Other: