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GRB 210222B

Time: 22:37:26
Trigger Number: 1034325
Burst Advocate: Jeff Gropp

BAT Data:

RA: a 154.631
10:18:31.4
Dec: a -14.946
-14:56:45.6
90% Error Radius: b 2.0
T90: c 12.82
Fluence: d 3.4 (0.7)
1s Peak Photon Flux: e 1.4 (0.3)
Photon Index: f 2.37, PL (0.33)

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 10:18:25.38
Dec: a -14:55:54.1
90% Error Radius: b 1.4
Time to First Observation: c 95.87
Early Flux: d n/a
11 Hour Flux: d n/a
24 Hour Flux: d n/a
Initial Temporal Index: -0.1931
Spectral Index (Gamma): 1.98
Column Density (NH): e 1.4

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 10:18:25.43
Dec: a -14:55:55.1
90% Error Radius: b 0.42
Time to First Observation: c 101
V Magnitude: V=16.80
Other Filter Magnitudes: B=17.24
U=16.82
UVW1>18.8
UVM2>20.1
UVW2>19.1
White=16.89

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
2.198 (FORS2/VLT: absorption)
Host Galaxy:
Other Observatory Detections:
BOOTES-1B (0.3m), LCO (1m), GOTO, Liverpool, NEXT (0.6m), FORS2/VLT, MASTER-Net, FRAM-ORM (25cm), VIRT (0.5m), Koshka (Zeiss-1000), REM (60cm)

Comments:

References:

BAT: GCN 29545; GCN 29561
XRT: GCN 29545; GCN 29560; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 29545; GCN 29559
Radio:
Redshift: GCN 29552 (FORS2/VLT)
Host:
Other: