GRB 090915
Time: 15:35:36
Trigger Number: Ground Analysis
20112
Burst Advocate: Taka Sakamoto
BAT Data:
| RA: a | 237.990 15:51:57.6 |
| Dec: a | 15.480 15:28:48.0 |
| 90% Error Radius: b | 3 |
| T90: c | 8 |
| Fluence: d | 5 (2) |
| 1s Peak Photon Flux: e | 0.8 (0.3) |
| Photon Index: f | 1.0, PL (0.2) |
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 | 15:52:04.87 |
| Dec: a | 15:29:15.4 |
| 90% Error Radius: b | 3.4 |
| Time to First Observation: c | n/a |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.05145459 |
| 24 Hour Flux: d | 0.023744292 |
| Initial Temporal Index: | n/a |
| Spectral Index (Gamma): | 1.22457 |
| Column Density (NH): e | 0.322000186153 |
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
UVOT Data:
| RA: a | 15:52:04.84 |
| Dec: a | 15:29:15.8 |
| 90% Error Radius: b | 0.8 |
| Time to First Observation: c | 44647 |
| V Magnitude: | V=21.08 |
| Other Filter Magnitudes: | U=21.40 White=22.15 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
SARA (0.9m)
Comments:
This was probably the same event as Fermi-GBM trigger 274721737. A Swift TOO has been requested and approved. The narrow-field instruments will observe the location approximately 13 hours after the burst.
References:
BAT: GCN 9912
XRT: GCN 9914; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9918
Radio:
Redshift:
Host:
Other: