GRB 210420B
Time: 18:34:37
Trigger Number: 1044382
Burst Advocate: Mike Moss
BAT Data:
| RA: a | 254.313 16:57:15.1 |
| Dec: a | 42.558 42:33:28.8 |
| 90% Error Radius: b | 2.1 |
| T90: c | 158.8 |
| Fluence: d | 15 (2) |
| 1s Peak Photon Flux: e | 0.5 (0.2) |
| Photon Index: f | 1.49, PL (0.19) |
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 | 16:57:17.90 |
| Dec: a | 42:34:12.7 |
| 90% Error Radius: b | 3.1 |
| Time to First Observation: c | 141 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.046090104 |
| 24 Hour Flux: d | 0.0175530486 |
| Initial Temporal Index: | -2.174 |
| Spectral Index (Gamma): | 1.61234 |
| Column Density (NH): e | 0.0000000623475 |
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 | 147 |
| V Magnitude: | V=16.7 |
| Other Filter Magnitudes: | U=18.6 B=17.1 UVW1=16.5 UVM2=17.2 UVW2=17.6 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:1.400 (GTC: absorption)Host Galaxy:
Other Observatory Detections:
MASTER-Kislovodsk, Hankasalmi (0.40m), BOOTES-4/MET (0.6m), YaoAn (AST3-3), Montarrenti (0.53m), NOT (2.5m), GTC (10.4m), DDOTI, KAIT (0.76m), Tautenburg (1.34m), HJT (1.5m), Ondrejov D50, Konkoly RC80 (0.8m), Koshka Zeiss-1000, INASAN/Simeiz (1m), Assy-Turgen (AZT-20)
Comments:
References:
BAT: GCN 29844; GCN 29854; GCN 29879
XRT: GCN 29844; GCN 29876; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 29844; GCN 29862
Radio:
Redshift: GCN 29853 (GTC)
Host:
Other: