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GRB 250823A

Time: 20:10:07
Trigger Number: 1344586
Burst Advocate: Mike Siegel

BAT Data:

RA: a 297.465
19:49:51.6
Dec: a -24.986
-24:59:09.6
90% Error Radius: b 1.7
T90: c 193.60
Fluence: d 18 (2)
1s Peak Photon Flux: e 1.1 (0.2)
Photon Index: f 1.76, PL (0.16)

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 19:49:54.75
Dec: a -24:59:44.4
90% Error Radius: b 2
Time to First Observation: c 440.5
Early Flux: d 10
11 Hour Flux: d 0.057416704
24 Hour Flux: d 0.0300627416
Initial Temporal Index: 1.5
Spectral Index (Gamma): 1.924248306
Column Density (NH): e 1.9111984056

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 126
V Magnitude: V=18.43
Other Filter Magnitudes: B=19.25
U>19.5
UVW1>19.1
UVM2>18.8
UVW2>19.3
White=20.42

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Fermi (GBM), Liverpool (2m), BOOTES6/DPRT (0.6m), LCOGT (1m), NOT, SVOM/VT, COLIBRÍ

Comments:

References:

BAT: GCN 41511; GCN 41539
XRT: GCN 41511; GCN 41515; GCN 41531; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 41511; GCN 41521
Radio:
Redshift:
Host:
Other: