Menu

GRB 090902B

Time: 11:05:08.31
Trigger Number: Fermi
Burst Advocate:

BAT Data:

RA: a 265.00
17:40:00.0
Dec: a 27.33
27:19:48.0
90% Error Radius: b 3.6
T90: c n/a
Fluence: d n/a (n/a)
1s Peak Photon Flux: e n/a (n/a)
Photon Index: f n/a (n/a)

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 17:39:45.26
Dec: a 27:19:28.1
90% Error Radius: b 2.1
Time to First Observation: c n/a
Early Flux: d n/a
11 Hour Flux: d 0.5149026
24 Hour Flux: d 0.17343615
Initial Temporal Index: -1.395
Spectral Index (Gamma): 1.85486
Column Density (NH): e 17.9131

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 45,096
V Magnitude: n/a
Other Filter Magnitudes: U=20.26

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:

Comments:

Fermi: GCN 9866 and 9867

References:

BAT:
XRT: GCN 9868; GCN 9871; GCN 9876; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9869; GCN 9877
Radio:
Redshift:
Host:
Other: GCN Report 249.1