GRB 250821A
Time: 10:46:17
Trigger Number: 1344131
Burst Advocate: Simone Dichiara
BAT Data:
| RA: a | 358.427 23:53:42.5 |
| Dec: a | -28.631 -28:37:51.6 |
| 90% Error Radius: b | 2.1 |
| T90: c | 1.52 |
| Fluence: d | 1.3 (0.3) |
| 1s Peak Photon Flux: e | 0.9 (0.2) |
| Photon Index: f | 0.83, PL (0.41) |
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 | 23:53:45.54 |
| Dec: a | -28:39:11.8 |
| 90% Error Radius: b | 2.4 |
| Time to First Observation: c | 142.82 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.000038214648 |
| 24 Hour Flux: d | 0.0000081770464 |
| Initial Temporal Index: | -1.976 |
| Spectral Index (Gamma): | 1.61909606 |
| Column Density (NH): e | 0.471279968 |
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 | 147 |
| V Magnitude: | V>19.1 |
| Other Filter Magnitudes: | B>19.9 U>19.6 UVW1>18.7 UVM2>19.1 UVW2>19.4 White>21.1 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
GECAM-B
Comments:
UVOT: no detection
References:
BAT: GCN 41462; GCN 41494
XRT: GCN 41462; GCN 41463; GCN 41472; GCN 41479; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 41462; GCN 41471
Radio:
Redshift:
Host:
Other: