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GRB 090727

Time: 22:42:18
Trigger Number: 358520
Burst Advocate: Phil Evans

BAT Data:

RA: a 315.917
21:03:40.1
Dec: a 64.937
64:56:13.2
90% Error Radius: b 2.2
T90: c 302
Fluence: d 14 (2)
1s Peak Photon Flux: e 0.5 (0.1)
Photon Index: f 1.24, PL (0.24)

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 21:03:50.59
Dec: a 64:55:29.4
90% Error Radius: b 1.6
Time to First Observation: c 87.95
Early Flux: d n/a
11 Hour Flux: d 0.04323321
24 Hour Flux: d 0.024083832
Initial Temporal Index: -0.7499
Spectral Index (Gamma): 1.59799
Column Density (NH): e 2.631042

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 91
V Magnitude: V>21.1
Other Filter Magnitudes: B>21.3
U>21.8
UVW1>22.1
UVM2>22.3
UVW2>21.7
White>21.5

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Liverpool (2m), Calar Alto (1.23m), SAO RAS (6m)

Comments:

UVOT: no detection

References:

BAT: GCN 9718; GCN 9724
XRT: GCN 9718; GCN 9721; GCN 9723; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9718; GCN 9731
Radio:
Redshift:
Host:
Other: GCN Report 243.1