GRB 211221A
Time: 20:48:40
Trigger Number: 1090472
Burst Advocate: Kim Page
BAT Data:
| RA: a | 78.906 05:15:37.4 |
| Dec: a | 0.902 00:54:07.2 |
| 90% Error Radius: b | 2.6 |
| T90: c | 671.67 |
| Fluence: d | 40 (3) |
| 1s Peak Photon Flux: e | 0.5 (0.1) |
| Photon Index: f | 1.48, 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 | 05:15:35.39 |
| Dec: a | 00:54:52.4 |
| 90% Error Radius: b | 1.9 |
| Time to First Observation: c | 54.14 |
| Early Flux: d | 68.2 |
| 11 Hour Flux: d | 0.076374294 |
| 24 Hour Flux: d | 0.0344450334 |
| Initial Temporal Index: | -1.021 |
| Spectral Index (Gamma): | 1.59408 |
| Column Density (NH): e | 10.52106 |
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 | 63 |
| V Magnitude: | V>18.6 |
| Other Filter Magnitudes: | B>19.4 U>20.0 UVW1>18.1 UVM2>17.8 UVW2>19.0 White>21.1 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
Fermi (GBM)
Comments:
UVOT: no detection
References:
BAT: GCN 31273; GCN 31289
XRT: GCN 31273; GCN 31275; GCN 31281; Evans et al., 2009, MNRAS, 397, 117
UVOT: GCN 31273; GCN 31317
Radio:
Redshift:
Host:
Other: