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GRB 090812

Time: 06:02:08
Trigger Number: 359711
Burst Advocate: Michael Stamatikos

BAT Data:

RA: a 353.20
23:32:48.0
Dec: a -10.609
-10:36:32.4
90% Error Radius: b 1.0
T90: c 66.7
Fluence: d 58 (2)
1s Peak Photon Flux: e 3.6 (0.2)
Photon Index: f 1.24, PL (0.05)

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 23:32:48.56
Dec: a -10:36:17.5
90% Error Radius: b 1.4
Time to First Observation: c 76.82
Early Flux: d 495
11 Hour Flux: d 0.11709094
24 Hour Flux: d 0.04648606
Initial Temporal Index: -2.317
Spectral Index (Gamma): 1.88559
Column Density (NH): e 5.99391

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 23:32:48.53
Dec: a -10:36:17.3
90% Error Radius: b 0.78
Time to First Observation: c 86
V Magnitude: V=18.17
Other Filter Magnitudes: B=18.62
U=18.65
UVW1>19.20
UVM2>18.72
UVW2>19.13
White=17.35

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
2.452 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
Palomar (60"), Liverpool (2m), VLT, ESO/MPI (2.2m), RAPTOR, Faulkes South, Suzaku, Konus-Wind, PROMPT (16")

Comments:

References:

BAT: GCN 9768; GCN 9775
XRT: GCN 9768; GCN 9772; GCN 9777; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9768; GCN 9774
Radio:
Redshift: GCN 9771 (VLT)
Host:
Other: