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GRB 210912A

Time: 11:01:11
Trigger Number: 1072990
Burst Advocate: Nora Troja

BAT Data:

RA: a 129.874
08:39:29.8
Dec: a 79.216
79:12:57.6
90% Error Radius: b 1.2
T90: c 28.35
Fluence: d 11 (1)
1s Peak Photon Flux: e 1.7 (0.2)
Photon Index: f 1.61, 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 08:39:34.11
Dec: a 79:13:16.3
90% Error Radius: b 3.1
Time to First Observation: c 52.63
Early Flux: d 64
11 Hour Flux: d 0.075405694
24 Hour Flux: d 0.0327481801
Initial Temporal Index: -3.403
Spectral Index (Gamma): 1.6687
Column Density (NH): e 1.176304

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 08:39:34.27
Dec: a 79:13:17.1
90% Error Radius: b 0.47
Time to First Observation: c 60
V Magnitude: V>17.8
Other Filter Magnitudes: B>18.3
U=19.56
UVW2>18.8
White=18.73

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Possible host visible in Pan-STARRS.
Other Observatory Detections:
BOOTES-5/JGT (60cm), Mondy AZT-33IK, CAHA (2.2m), Tautenburg (1.34m)

Comments:

References:

BAT: GCN 30820; GCN 30839
XRT: GCN 30820; GCN 30830; GCN 30833; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 30832
Radio:
Redshift:
Host: GCN 30829
Other: