GRB 090531A
Time: 01:45:17
Trigger Number: 353627
Burst Advocate: Michael Stamatikos
BAT Data:
| RA: a | 178.672 11:54:41.3 |
| Dec: a | 7.824 07:49:26.4 |
| 90% Error Radius: b | 1.1 |
| T90: c | 32 |
| Fluence: d | 13 (1) |
| 1s Peak Photon Flux: e | 1.3 (0.2) |
| Photon Index: f | 0.86, CPL (0.42) |
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 | n/a |
| Dec: a | n/a |
| 90% Error Radius: b | n/a |
| Time to First Observation: c | n/a |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.15432857 |
| 24 Hour Flux: d | 0.09298594 |
| Initial Temporal Index: | -0.6494 |
| Spectral Index (Gamma): | 0.883481 |
| Column Density (NH): e | 0.377912 |
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 | n/a |
| V Magnitude: | n/a |
| Other Filter Magnitudes: | n/a |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
Comments:
Because of a Moon constraint, Swift could not slew, and there will be no XRT or UVOT observations until June 3.
References:
BAT: GCN 9454; GCN 9460
XRT: GCN 9525; Evans et al., 2009, MNRAS, 397, 1177
UVOT:
Radio:
Redshift:
Host:
Other: