GRB 210504A
Time: 13:54:53
Trigger Number: 1046782
Burst Advocate: Andy Beardmore
BAT Data:
| RA: a | 222.379 14:49:31.0 |
| Dec: a | -30.557 -30:33:25.2 |
| 90% Error Radius: b | 2.1 |
| T90: c | 135.06 |
| Fluence: d | 27 (2) |
| 1s Peak Photon Flux: e | 0.9 (0.2) |
| Photon Index: f | 1.64, 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 | 14:49:33.89 |
| Dec: a | -30:32:00.5 |
| 90% Error Radius: b | 2.0 |
| Time to First Observation: c | 218 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.035433123 |
| 24 Hour Flux: d | 0.0206848707 |
| Initial Temporal Index: | -2.963 |
| Spectral Index (Gamma): | 2.11488 |
| Column Density (NH): e | 0.0000426977 |
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 | 14:49:34.03 |
| Dec: a | -30:32:02.2 |
| 90% Error Radius: b | 0.6 |
| Time to First Observation: c | 218 |
| V Magnitude: | V>18.26 |
| Other Filter Magnitudes: | B=19.17 U>18.89 UVW1>18.49 UVM2>17.24 UVW2>18.60 White=19.75 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:2.077 (VLT: absorption)Host Galaxy:
Other Observatory Detections:
NOT, VLT, Lowell Discovery Telescope (4.3m), LCO (1m)
Comments:
References:
BAT: GCN 29929; GCN 29930; GCN 29939
XRT: GCN 29929; GCN 29942; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 29929; GCN 29933
Radio:
Redshift: GCN 29944 (VLT)
Host:
Other: