GRB 251221A
Time: 05:24:31
Trigger Number: 1426088
Burst Advocate: Elena Ambrosi
BAT Data:
| RA: a | 101.422 06:45:41.3 |
| Dec: a | 0.738 00:44:16.8 |
| 90% Error Radius: b | 1.4 |
| T90: c | 56.86 |
| Fluence: d | 20 (2) |
| 1s Peak Photon Flux: e | 1.1 (0.2) |
| Photon Index: f | 1.25, 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 | 06:45:42.64 |
| Dec: a | 00:43:56.2 |
| 90% Error Radius: b | 2 |
| Time to First Observation: c | 138.41 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.038425103 |
| 24 Hour Flux: d | 0.016433693 |
| Initial Temporal Index: | -1.089 |
| Spectral Index (Gamma): | 1.525450855 |
| Column Density (NH): e | 11.393518802 |
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 | 143 |
| V Magnitude: | V>19.6 |
| Other Filter Magnitudes: | B>19.4 U>19.5 UVW1>19.1 UVM2>19.5 UVW2>19.6 White>21.1 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
Fermi (GBM), COLIBRÍ, PRIME
Comments:
UVOT: no detection
References:
BAT: GCN 43166; GCN 43234
XRT: GCN 43166; GCN 43175; GCN 43179; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 43166; GCN 43177
Radio:
Redshift:
Host:
Other: