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GRB 230228A

Time: 05:50:50
Trigger Number: 1156572
Burst Advocate: Simone Dichiara

BAT Data:

RA: a 18.397
01:13:35.3
Dec: a 44.495
44:29:42.0
90% Error Radius: b 1.5
T90: c 2.18
Fluence: d 3.6 (0.4)
1s Peak Photon Flux: e 3.0 (0.4)
Photon Index: f 1.66, PL (0.17)

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 01:13:30.74
Dec: a 44:28:58.5
90% Error Radius: b 2.1
Time to First Observation: c 118.99
Early Flux: d n/a
11 Hour Flux: d 0.0169371832
24 Hour Flux: d 0.0081323144
Initial Temporal Index: -0.9404
Spectral Index (Gamma): 1.81512
Column Density (NH): e 2.072708

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 122
V Magnitude: V>18.8
Other Filter Magnitudes: B>19.8
U>19.7
UVW1>20.0
UVM2>19.7
UVW2>20.1
White>20.6

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Fermi (GBM)

Comments:

UVOT: no detection

References:

BAT: GCN 33378; GCN 33393
XRT: GCN 33378; GCN 33379; GCN 33382; GCN 33384; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33378; GCN 33392
Radio:
Redshift:
Host:
Other: