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GRB 220427A

Time: 21:00:34
Trigger Number: 1104343
Burst Advocate: Antonino D'Ai

BAT Data:

RA: a 275.922
18:23:41.3
Dec: a -56.257
-56:15:25.2
90% Error Radius: b 2.0
T90: c 57.2
Fluence: d 21 (2)
1s Peak Photon Flux: e 3.0 (0.3)
Photon Index: f 1.23, PL (0.13)

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 18:23:33.2
Dec: a -56:15:18.4
90% Error Radius: b 2
Time to First Observation: c 178.08
Early Flux: d n/a
11 Hour Flux: d 0.041797393
24 Hour Flux: d 0.0180243393
Initial Temporal Index: -1.078
Spectral Index (Gamma): 2.01924
Column Density (NH): e 1.630484

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 18:23:33.32
Dec: a -56:15:18.3
90% Error Radius: b 0.61
Time to First Observation: c 181
V Magnitude: n/a
Other Filter Magnitudes: White=17.23

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
Konus-Wind, VLT, GRANDMA, LCO (1m), MeerLICHT (0.6m)

Comments:

References:

BAT: GCN 31960; GCN 31968
XRT: GCN 31960; GCN 31962; GCN 31963; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 31960
Radio:
Redshift:
Host:
Other: