GRB 250911A
Time: 01:27:46
Trigger Number: 1348587
Burst Advocate: Noel Klingler
BAT Data:
| RA: a | 263.752 17:35:00.5 |
| Dec: a | -16.841 -16:50:27.6 |
| 90% Error Radius: b | 1.0 |
| T90: c | 128.42 |
| Fluence: d | 150 (0) |
| 1s Peak Photon Flux: e | 8.6 (0.6) |
| Photon Index: f | 1.00, CPL (0.20) |
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 | 17:35:00.03 |
| Dec: a | -16:51:15.1 |
| 90% Error Radius: b | 1.9 |
| Time to First Observation: c | 3441.46 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.221342862 |
| 24 Hour Flux: d | 0.068418228 |
| Initial Temporal Index: | -1.505 |
| Spectral Index (Gamma): | 1.848856299 |
| Column Density (NH): e | 4.1362401402 |
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 | 17:35:00.03 |
| Dec: a | -16:51:14.9 |
| 90% Error Radius: b | 0.42 |
| Time to First Observation: c | 3500 |
| V Magnitude: | V>19.20 |
| Other Filter Magnitudes: | B=19.40 U=19.18 UVW1>19.53 UVM2>19.38 UVW2>19.50 White=19.95 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
COLIBRÍ, MASTER-OAFA, GECAM-B, Insight-HXMT, Konus-Wind, MAXI
Comments:
Due to an observing constraint, Swift did not slew until T0+50 minutes.
References:
BAT: GCN 41781; GCN 41812
XRT: GCN 41783; GCN 41784; GCN 41804; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 41800
Radio:
Redshift:
Host:
Other: