GRB 230204A
Time: 02:56:57
Trigger Number: 1152509
Burst Advocate: Antonino D'Ai
BAT Data:
| RA: a | 238.166 15:52:39.8 |
| Dec: a | -50.848 -50:50:52.8 |
| 90% Error Radius: b | 2.4 |
| T90: c | 182.05 |
| Fluence: d | 37 (3) |
| 1s Peak Photon Flux: e | 0.9 (0.2) |
| Photon Index: f | 1.72, PL (0.13) |
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 | 15:52:47.91 |
| Dec: a | -50:55:00.2 |
| 90% Error Radius: b | 2 |
| Time to First Observation: c | 146.85 |
| Early Flux: d | 277 |
| 11 Hour Flux: d | 0.000584994389 |
| 24 Hour Flux: d | 0.000092458051 |
| Initial Temporal Index: | -2.365 |
| Spectral Index (Gamma): | 1.53928 |
| Column Density (NH): e | 20.814 |
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 | 156 |
| V Magnitude: | V>15.9 |
| Other Filter Magnitudes: | B>17.9 U>19.1 UVW1>19.1 UVM2>18.8 UVW2>18.5 White>17.8 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
LCOGT (1m, candidate)
Comments:
Note that this source is near the Galactic plane (lat=2.38 deg) and was detected as a 64 s image trigger, which raises the possibility that this is a Galactic transient. We would name this source Swift J1552.8-5055 if it is not a GRB.
UVOT: no detection
References:
BAT: GCN 33260; GCN 33279
XRT: GCN 33260; GCN 33261; GCN 33264; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 33260; GCN 33266
Radio:
Redshift:
Host:
Other: