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GRB 240418A

Time: 20:24:08
Trigger Number: 1222885
Burst Advocate: Mike Siegel

BAT Data:

RA: a 239.342
15:57:22.1
Dec: a 23.632
23:37:55.2
90% Error Radius: b 2.3
T90: c 12.00
Fluence: d 2.3 (0.5)
1s Peak Photon Flux: e 0.5 (0.2)
Photon Index: f 1.99, PL (0.31)

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 15:57:30.04
Dec: a 23:35:45.0
90% Error Radius: b 3.6
Time to First Observation: c 122.25
Early Flux: d n/a
11 Hour Flux: d 0.00000035580025
24 Hour Flux: d 0.0000000375713
Initial Temporal Index: -2.882
Spectral Index (Gamma): 2.025607606
Column Density (NH): e 0.52579851063347

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>19.3
Other Filter Magnitudes: B>20.2
U>19.9
UVW1>19.7
UVM2>19.5
White>21.1

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:

Comments:

UVOT: no detection

References:

BAT: GCN 36162; GCN 36254
XRT: GCN 36162; GCN 36166; GCN 36181; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 36162; GCN 36184
Radio:
Redshift:
Host:
Other: