GRB 170531A

Time: 20:07:32
Trigger Number: 755343
Burst Advocate: Phil Evans

BAT Data:

RA: a 121.218
Dec: a -14.017
90% Error Radius: b 2.4
T90: c 26.74
Fluence: d 7.5 (1.2)
1s Peak Photon Flux: e n/a (n/a)
Photon Index: f 1.22, PL (0.28)

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:

BAT Light Curve for GRB 170531A

XRT Data:

RA: a 08:05:00.57
Dec: a -14:01:21.8
90% Error Radius: b 3.5
Time to First Observation: c 122.64
Early Flux: d 29.2
11 Hour Flux: d 0.0078343944
24 Hour Flux: d 0.0048130104
Initial Temporal Index: -0.6245
Spectral Index (Gamma): 2.24635
Column Density (NH): e 5.59508

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 3523
V Magnitude: V>17.5
Other Filter Magnitudes: B>18.2

a J2000; b arcsec; c seconds

Other Burst Info:

Host Galaxy:
Other Observatory Detections:


UVOT: no detection


BAT: GCN 21170; GCN 21185
XRT: GCN 21170; GCN 21180; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 21172; GCN 21184