GRB 250818B
Time: 03:29:09
Trigger Number: SVOM
Burst Advocate:
BAT Data:
| RA: a | 46.0666 03:04:16.0 |
| Dec: a | -3.1784 -03:10:42.2 |
| 90% Error Radius: b | n/a |
| T90: c | n/a |
| Fluence: d | n/a (n/a) |
| 1s Peak Photon Flux: e | n/a (n/a) |
| Photon Index: f | n/a (n/a) |
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 | 03:04:13.26 |
| Dec: a | -03:07:30.0 |
| 90% Error Radius: b | 3.57998 |
| Time to First Observation: c | 1700 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | n/a |
| 24 Hour Flux: d | n/a |
| Initial Temporal Index: | -0.9434 |
| Spectral Index (Gamma): | 1.67 |
| Column Density (NH): e | 0.86 |
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
UVOT Data:
| RA: a | 03:04:13.45 |
| Dec: a | -03:07:31.2 |
| 90% Error Radius: b | 0.42 |
| Time to First Observation: c | 1700 |
| V Magnitude: | n/a |
| Other Filter Magnitudes: | U=18.25 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
Comments:
SVOM: GCN 41405
References:
BAT:
XRT: GCN 41407; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 41435
Radio:
Redshift:
Host:
Other: