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GRB 241228A

Time: 03:57:15
Trigger Number: 1277277
Burst Advocate: Valerio D'Elia

BAT Data:

RA: a 344.810
22:59:14.4
Dec: a 18.608
18:36:28.8
90% Error Radius: b 1.0
T90: c 8.06
Fluence: d 30 (1)
1s Peak Photon Flux: e 13.1 (0.6)
Photon Index: f 0.90, CPL (0.24)

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 22:59:12.32
Dec: a 18:36:35.9
90% Error Radius: b 1.9
Time to First Observation: c 97.17
Early Flux: d n/a
11 Hour Flux: d 0.074588943
24 Hour Flux: d 0.0240285474
Initial Temporal Index: -0.9743
Spectral Index (Gamma): 1.844084701
Column Density (NH): e 3.556887675

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 101
V Magnitude: V>19.1
Other Filter Magnitudes: B>19.8
U>20.0
UVW1>19.2
White>21.3

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Fermi (GBM), AZT-33IK, Konus-Wind

Comments:

UVOT: no detection

References:

BAT: GCN 38681; GCN 38701
XRT: GCN 38681; GCN 38683; GCN 38686; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 38681; GCN 38685
Radio:
Redshift:
Host:
Other: