GRB 170903A
Time: 12:49:07
Trigger Number: 770528
Burst Advocate: Craig Markwardt
BAT Data:
| RA: a | 254.532 16:58:07.7 |
| Dec: a | 34.985 34:59:06.0 |
| 90% Error Radius: b | 1.3 |
| T90: c | 29.2 |
| Fluence: d | 24 (2) |
| 1s Peak Photon Flux: e | 3.9 (0.5) |
| Photon Index: f | 1.94, PL (0.12) |
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 | 16:58:06.24 |
| Dec: a | 34:58:44.7 |
| 90% Error Radius: b | 1.4 |
| Time to First Observation: c | 3117.48 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.170673356 |
| 24 Hour Flux: d | 0.088446029 |
| Initial Temporal Index: | -0.02095 |
| Spectral Index (Gamma): | 2.20256 |
| Column Density (NH): e | 5.491716 |
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 | 3484 |
| V Magnitude: | V>1.7 |
| Other Filter Magnitudes: | B>20.5 U>21.0 UVW1>20.7 UVM2>20.4 UVW2>21.8 White>21.6 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:0.886 (GTC: emission from host)Host Galaxy:
i-band (AB) = 23.17 (GTC)Other Observatory Detections:
Fermi (GBM)
Comments:
Due to an observing constraint, Swift did not slew until T0+49.5 minutes.
UVOT: no detection
References:
BAT: GCN 21793; GCN 21796
XRT: GCN 21794; GCN 21797; GCN 21800; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 21806
Radio:
Redshift: GCN 21799 (GTC)
Host: GCN 21799 (GTC)
Other: