GRB 250430A
Time: 17:31:21
Trigger Number: 1308754
Burst Advocate: Tyler Parsotan
BAT Data:
| RA: a | 233.395 15:33:34.8 |
| Dec: a | -18.101 -18:06:03.6 |
| 90% Error Radius: b | 1.1 |
| T90: c | 9.17 |
| Fluence: d | 8.9 (0.6) |
| 1s Peak Photon Flux: e | 2.3 (0.2) |
| Photon Index: f | 1.66, PL (0.11) |
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 | 15:33:32.88 |
| Dec: a | -18:07:06.6 |
| 90% Error Radius: b | 2.3 |
| Time to First Observation: c | 157.30 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.52050808 |
| 24 Hour Flux: d | 0.3894608 |
| Initial Temporal Index: | -0.3718 |
| Spectral Index (Gamma): | 1.886166478 |
| Column Density (NH): e | 1.7478321597 |
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 | 15:33:32.85 |
| Dec: a | -18:07:06.2 |
| 90% Error Radius: b | 1.10 |
| Time to First Observation: c | 118 |
| V Magnitude: | V>18.9 |
| Other Filter Magnitudes: | B>19.8 U=17.91 UVW1>19.0 UVM2>17.3 UVW2>18.6 White=19.40 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:0.767 (VLT: absorption)Host Galaxy:
Other Observatory Detections:
AKO (0.36m), Einstein Probe, VLT, NUTTelA-TAO, KAIT (0.76m), SVOM/VT, Virtual Telescope Project (14"), Konus-Wind, AstroSat CZTI
Comments:
References:
BAT: GCN 40292; GCN 40356
XRT: GCN 40292; GCN 40318; GCN 40323; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 40292; GCN 40321
Radio:
Redshift: GCN 40301 (VLT)
Host:
Other: