Menu

GRB 241218A

Time: 00:08:51
Trigger Number: 1275005
Burst Advocate: Maia Williams

BAT Data:

RA: a 185.687
12:22:44.9
Dec: a 29.984
29:59:02.4
90% Error Radius: b 2.1
T90: c 23.31
Fluence: d 5.5 (1.0)
1s Peak Photon Flux: e 0.6 (0.2)
Photon Index: f 1.31, PL (0.26)

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 12:22:43.60
Dec: a 29:58:23.7
90% Error Radius: b 2.2
Time to First Observation: c 144.52
Early Flux: d 516
11 Hour Flux: d 0.0062409
24 Hour Flux: d 0.00200007375
Initial Temporal Index: -2.726
Spectral Index (Gamma): 1.738631335
Column Density (NH): e 0.2228740722266

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 152
V Magnitude: V>18.5
Other Filter Magnitudes: B>18.7
U>19.8
UVW1>21.1
White>21.0

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:

Comments:

UVOT: no detection

References:

BAT: GCN 38601; GCN 38629
XRT: GCN 38601; GCN 38604; GCN 38614; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 38601; GCN 38634
Radio:
Redshift:
Host:
Other: