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GRB 210209A

Time: 21:39:44
Trigger Number: 1031636
Burst Advocate: Sibasish Laha

BAT Data:

RA: a 328.097
21:52:23.3
Dec: a 43.545
43:32:42.0
90% Error Radius: b 1.6
T90: c 139.4
Fluence: d 24 (2)
1s Peak Photon Flux: e 0.6 (0.2)
Photon Index: f 1.52, PL (0.12)

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 21:52:29.36
Dec: a 43:33:25.2
90% Error Radius: b 1.4
Time to First Observation: c 116.52
Early Flux: d 398
11 Hour Flux: d 0.2781368
24 Hour Flux: d 0.1122844
Initial Temporal Index: -4.728
Spectral Index (Gamma): 1.92765
Column Density (NH): e 3.666260039488

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 126
V Magnitude: V>19.1
Other Filter Magnitudes: B>18.8
U>19.8
UVW1>19.7
UVM2>19.4
UVW2>20.5
White>20.4

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:

Comments:

UVOT: no detection

References:

BAT: GCN 29442; GCN 29479
XRT: GCN 29442; GCN 29443; GCN 29449; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 29442; GCN 29453
Radio:
Redshift:
Host:
Other: