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GRB 170208B

Measurement Value Units
Swift Trigger Time Feb. 8, 2017, 4:33 p.m. UT Modify
Swift Trigger Number 737463 None Modify
BAT RA (J2000) 127.145 deg Modify
BAT Dec (J2000) -9.027 deg Modify
BAT 90% Error Radius 1.0 arcmin Modify
BAT T90 128.07 sec Modify
BAT Fluence (15-150 keV) 61.0 10^-7 erg/cm^2 Modify
XRT Time to First Observation 61.77 sec Modify
UVOT Time to First Observation 127.0 sec Modify
UVOT Magnitude V>19.6 None Modify
UVOT Other Filter Magnitudes B>20.3|U>21.3|UVW1>20.1|UVM2>19.9|UVW2>19.7 None Modify
Swift Comments UVOT: no detection None Modify
Swift Burst Advocate Mike Siegel None Modify
XRT RA (J2000) 127.143958333 deg Modify
XRT Dec (J2000) -9.02991666667 deg Modify
XRT 90% Error Radius 1.6 arcsec Modify
XRT Initial Temporal Index -2.431 None Modify
XRT Spectral Index (Gamma) 2.14664 None Modify
XRT Column Density (NH) 3.913172 10^21 cm^-2 Modify
BAT 1-sec Peak Photon Flux (15-150 keV) 8.4 ph/cm^2/sec Modify
XRT 11 Hour Flux (0.3-10 keV) 0.104615831 10^-11 erg/cm^2/s Modify
XRT 24 Hour Flux (0.3-10 keV) 0.047101518 10^-11 erg/cm^2/s Modify
Other Observatory Detections Konus-Wind, Fermi (GBM), WHT (4.2m) None Modify
XRT Early Flux (0.3-10 keV) 716.0 10^-11 erg/cm^2/s Modify
Host Galaxy MPG: possible host None Modify
BAT Photon Index (15-150 keV) (CPL = cutoff power-law) 1.18 None Modify

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