GRB 210421A
Time: 00:27:30
Trigger Number: 1044426
Burst Advocate: Mike Moss
BAT Data:
| RA: a | 104.882 06:59:31.7 |
| Dec: a | 4.928 04:55:40.8 |
| 90% Error Radius: b | 1.2 |
| T90: c | 79.52 |
| Fluence: d | 20 (2) |
| 1s Peak Photon Flux: e | 2.0 (0.3) |
| Photon Index: f | 1.10, CPL (0.72) |
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 | 06:59:29.86 |
| Dec: a | 04:55:20.0 |
| 90% Error Radius: b | 2.1 |
| Time to First Observation: c | 87.81 |
| Early Flux: d | 1510 |
| 11 Hour Flux: d | 0.052282002 |
| 24 Hour Flux: d | 0.0295894896 |
| Initial Temporal Index: | -2.566 |
| Spectral Index (Gamma): | 2.17119 |
| Column Density (NH): e | 4.6287300826473 |
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 | 96 |
| V Magnitude: | V>17.9 |
| Other Filter Magnitudes: | B>19.2 U>19.6 UVW1>18.1 UVM2>17.9 UVW2>18.3 White>20.6 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
GECAM-B
Comments:
UVOT: no detection
References:
BAT: GCN 29849; GCN 29893
XRT: GCN 29849; GCN 29865; GCN 29875; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 29849; GCN 29885
Radio:
Redshift:
Host:
Other: