GRB 150818A
Time: 11:36:32
Trigger Number: 652603
Burst Advocate: Valerio D'Elia
BAT Data:
RA: a | 230.340 15:21:21.6 |
Dec: a | 68.342 68:20:31.2 |
90% Error Radius: b | 1.1 |
T90: c | 123.3 |
Fluence: d | 41 (2) |
1s Peak Photon Flux: e | 2.4 (0.3) |
Photon Index: f | 1.96, PL (0.09) |
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)
BAT Light Curve:
XRT Data:
RA: a | 15:21:25.44 |
Dec: a | 68:20:31.3 |
90% Error Radius: b | 1.6 |
Time to First Observation: c | 84.45 |
Early Flux: d | 1590 |
11 Hour Flux: d | 0.04607164 |
24 Hour Flux: d | 0.0266887164 |
Initial Temporal Index: | -2.357 |
Spectral Index (Gamma): | 1.9776 |
Column Density (NH): e | 0.886699 |
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 | 15:21:25.43 |
Dec: a | 68:20:33.0 |
90% Error Radius: b | 0.66 |
Time to First Observation: c | 94 |
V Magnitude: | V>19.36 |
Other Filter Magnitudes: | B=20.56 U=19.63 UVW1=18.78 UVM2=18.81 UVW2=18.90 White=19.68 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:0.282 (GTC: emission from possible host)Host Galaxy:
Other Observatory Detections:
NOT, AZT-33IK, Konus-Wind, GTC (10.4m), Zeiss-1000
Comments:
References:
BAT: GCN 18152; GCN 18157
XRT: GCN 18152; GCN 18159; GCN 18162; GCN 18166; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 18152; GCN 18155; GCN 18161
Radio:
Redshift: GCN 18177 (GTC)
Host:
Other: