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GRB 250807B

Time: 15:43:07
Trigger Number: 1340561
Burst Advocate: Noel Klingler

BAT Data:

RA: a 15.611
01:02:26.6
Dec: a -59.098
-59:05:52.8
90% Error Radius: b 2.0
T90: c 104.17
Fluence: d 25 (2)
1s Peak Photon Flux: e 0.9 (0.3)
Photon Index: f 1.72, PL (0.12)

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 01:02:32.92
Dec: a -59:07:08.6
90% Error Radius: b 2.1
Time to First Observation: c 144.50
Early Flux: d 102
11 Hour Flux: d 0.0309138168
24 Hour Flux: d 0.0102386814
Initial Temporal Index: -1.416
Spectral Index (Gamma): 1.957232346
Column Density (NH): e 0.3893857373

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 01:02:32.98
Dec: a -59:07:07.9
90% Error Radius: b 0.75
Time to First Observation: c 154
V Magnitude: V>17.45
Other Filter Magnitudes: U=19.86
UVW1=19.64
UVW2>20.8
White=16.30

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
 1.522 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
ESO NTT, VLT, Kilonova-Catcher, SVOM/VT

Comments:

References:

BAT: GCN 41268; GCN 41333
XRT: GCN 41268; GCN 41272; GCN 41280; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 41268; GCN 41294
Radio:
Redshift: GCN 41289 (VLT)
Host:
Other: