GRB 091221
Time: 20:52:52
Trigger Number: 380311
Burst Advocate: Hans Krimm
BAT Data:
| RA: a | 55.798 03:43:11.5 |
| Dec: a | 23.243 23:14:34.8 |
| 90% Error Radius: b | 1.4 |
| T90: c | 68.5 |
| Fluence: d | 57 (2) |
| 1s Peak Photon Flux: e | 3.0 (0.2) |
| Photon Index: f | 1.59, PL (0.06) |
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)
BAT Light Curve:
XRT Data:
| RA: a | 03:43:11.42 |
| Dec: a | 23:14:28.9 |
| 90% Error Radius: b | 1.7 |
| Time to First Observation: c | 72.37 |
| Early Flux: d | 147 |
| 11 Hour Flux: d | 0.017503782 |
| 24 Hour Flux: d | 0.006735826 |
| Initial Temporal Index: | -1.224 |
| Spectral Index (Gamma): | 1.71365 |
| Column Density (NH): e | 1.991714 |
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 | 03:43:11.40 |
| Dec: a | 23:14:28.3 |
| 90% Error Radius: b | 0.6 |
| Time to First Observation: c | 80 |
| V Magnitude: | V>19.56 |
| Other Filter Magnitudes: | B>21.11 U>20.68 UVW1>19.96 UVM2>19.79 UVW2>20.07 White=20.19 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
ROTSE-III, ESO/MPI (2.2m), Fermi (GBM), PROMPT (16")
Comments:
References:
BAT: GCN 10283; GCN 10291
XRT: GCN 10283; GCN 10287; GCN 10288; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 10283; GCN 10285; GCN 10289
Radio:
Redshift:
Host:
Other: GCN Report 263.1