GRB 240421B
Time: 09:42:54
Trigger Number: 1223470
Burst Advocate: Maia Williams
BAT Data:
| RA: a | 299.685 19:58:44.4 |
| Dec: a | -14.878 -14:52:40.8 |
| 90% Error Radius: b | 1.0 |
| T90: c | 24.00 |
| Fluence: d | 64 (5) |
| 1s Peak Photon Flux: e | 14.1 (1.6) |
| Photon Index: f | 0.63, CPL (0.52) |
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 | 19:58:48.21 |
| Dec: a | 14:51:34.9 |
| 90% Error Radius: b | 2 |
| Time to First Observation: c | 126.35 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.238283205 |
| 24 Hour Flux: d | 0.08508012 |
| Initial Temporal Index: | -0.4962 |
| Spectral Index (Gamma): | 1.872692915 |
| Column Density (NH): e | 6.498403536 |
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 | 130 |
| V Magnitude: | V>18.4 |
| Other Filter Magnitudes: | B>19.8 U>20.2 UVW1>19.4 UVW2>18.8 White>20.9 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
Fermi (GBM), AstroSat CZTI, GRBAlpha
Comments:
UVOT: no detection
References:
BAT: GCN 36208; GCN 36291
XRT: GCN 36208; GCN 36213; GCN 36217; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 36208; GCN 36214
Radio:
Redshift:
Host:
Other: