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GRB 170912A

Measurement Value Units
Swift Trigger Time Sept. 11, 2017, 8:34 p.m. UT Modify
Swift Trigger Number 772006 None Modify
BAT RA (J2000) 167.386 deg Modify
BAT Dec (J2000) -54.343 deg Modify
BAT 90% Error Radius 2.1 arcmin Modify
BAT T90 21.9 sec Modify
BAT Fluence (15-150 keV) 11.0 10^-7 erg/cm^2 Modify
BAT Photon Index (15-150 keV) (PL = simple power-law) 2.04 None Modify
XRT Time to First Observation 118.71 sec Modify
UVOT Time to First Observation 122.0 sec Modify
UVOT Magnitude V>18.8 None Modify
UVOT Other Filter Magnitudes B>19.6|U>19.2|UVW1>18.7|UVM2>20.0|UVW2>19.7|White>21.6 None Modify
Swift Comments UVOT: no detection None Modify
Swift Burst Advocate Aaron Tohuvavohu None Modify
XRT RA (J2000) 167.373416667 deg Modify
XRT Dec (J2000) -54.3263888889 deg Modify
XRT 90% Error Radius 1.9 arcsec Modify
XRT Initial Temporal Index -4.782 None Modify
XRT Spectral Index (Gamma) 1.85301 None Modify
XRT Column Density (NH) 3.136232988 10^21 cm^-2 Modify
BAT 1-sec Peak Photon Flux (15-150 keV) 2.0 ph/cm^2/sec Modify
XRT 11 Hour Flux (0.3-10 keV) 2.24105624e-11 10^-11 erg/cm^2/s Modify
XRT 24 Hour Flux (0.3-10 keV) 5.375145e-13 10^-11 erg/cm^2/s Modify

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