GRB 090827

Time: 19:06:26
Trigger Number: 361029
Ground Analysis
20110
Burst Advocate: Jay Cummings

BAT Data:

RA: a	18.435 01:13:44.4
Dec: a	-50.899 -50:53:56.4
90% Error Radius: b	2.8
T90: c	n/a
Fluence: d	40 (20)
1s Peak Photon Flux: e	n/a (n/a)
Photon Index: f	1.0, PL (0.3)

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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	n/a
Dec: a	n/a
90% Error Radius: b	n/a
Time to First Observation: c	n/a
Early Flux: d	n/a
11 Hour Flux: d	0.03012296
24 Hour Flux: d	0.016665712
Initial Temporal Index:	n/a
Spectral Index (Gamma):	1.39208
Column Density (NH): e	0.157027255

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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	n/a
Dec: a	n/a
90% Error Radius: b	n/a
Time to First Observation: c	91600
V Magnitude:	n/a
Other Filter Magnitudes:	U>21.94

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^a J2000; ^b arcsec; ^c seconds

Comments:

Ground analysis detection. A Swift TOO has been requested and will take place starting approximately 26 hours after the burst.
UVOT: no detection

References:

BAT: GCN 9846
XRT: GCN 9847; GCN 9911; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9847
Radio:
Redshift:
Host:
Other: GCN Report 244.1