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GRB 171216A

Measurement Value Units
Swift Trigger Time Dec. 15, 2017, 9:06 p.m. UT Modify
Swift Trigger Number 797441 None Modify
BAT RA (J2000) 212.013 deg Modify
BAT Dec (J2000) -50.5 deg Modify
BAT 90% Error Radius 2.1 arcmin Modify
BAT T90 30.0 sec Modify
BAT Fluence (15-150 keV) 4.8 10^-7 erg/cm^2 Modify
BAT Photon Index (15-150 keV) (PL = simple power-law) 1.63 None Modify
XRT Time to First Observation 115.21 sec Modify
UVOT Time to First Observation 124.0 sec Modify
UVOT Magnitude V>17.8 None Modify
UVOT Other Filter Magnitudes B>19.8|U>18.6|UVW1>19.3|UVM2>19.3|UVW2>20.1 None Modify
Swift Comments UVOT: no detection None Modify
Swift Burst Advocate Frank Marshall None Modify
XRT RA (J2000) 211.990708333 deg Modify
XRT Dec (J2000) -50.48475 deg Modify
XRT 90% Error Radius 1.5 arcsec Modify
XRT Initial Temporal Index -2.898 None Modify
XRT Spectral Index (Gamma) 1.76023 None Modify
XRT Column Density (NH) 2.83834047658 10^21 cm^-2 Modify
BAT 1-sec Peak Photon Flux (15-150 keV) 0.8 ph/cm^2/sec Modify
XRT 11 Hour Flux (0.3-10 keV) 0.0326203651 10^-11 erg/cm^2/s Modify
XRT 24 Hour Flux (0.3-10 keV) 0.016649384 10^-11 erg/cm^2/s Modify
XRT Early Flux (0.3-10 keV) 53.7 10^-11 erg/cm^2/s Modify

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