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GRB 200901A

Time: 03:47:31
Trigger Number: 994143
Burst Advocate: Kira Simpson

BAT Data:

RA: a 61.759
04:07:02.2
Dec: a -59.901
-59:54:03.6
90% Error Radius: b 1.1
T90: c 20.37
Fluence: d 29 (2)
1s Peak Photon Flux: e 7.7 (0.6)
Photon Index: f 1.72, PL (0.11)

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 04:07:07.97
Dec: a -59:53:27.0
90% Error Radius: b 1.8
Time to First Observation: c 3050.36
Early Flux: d n/a
11 Hour Flux: d 0.04913271
24 Hour Flux: d 0.0234207369
Initial Temporal Index: -0.9497
Spectral Index (Gamma): 2.31313
Column Density (NH): e 2.177558

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 3053
V Magnitude: V>19.1
Other Filter Magnitudes: B>20.4
U>20.0
UVW1>19.1
UVM2>19.1
UVW2>19.3
White=20.5

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Fermi (GBM), MASTER-OAFA

Comments:

Due to an observing constraint, Swift did not slew until T0+47.5 minutes.
UVOT: possible afterglow, it is not clear whether the source is fading

References:

BAT: GCN 28335; GCN 28344
XRT: GCN 28336; GCN 28341; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 28342
Radio:
Redshift:
Host:
Other: