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GRB 170311A

Measurement Value Units
Swift Trigger Time March 11, 2017, 2:08 a.m. UT Modify
Swift Trigger Number 741965 None Modify
BAT RA (J2000) 280.539 deg Modify
BAT Dec (J2000) -30.041 deg Modify
BAT 90% Error Radius 2.0 arcmin Modify
BAT T90 6.32 sec Modify
BAT Fluence (15-150 keV) 2.5 10^-7 erg/cm^2 Modify
BAT Photon Index (15-150 keV) (PL = simple power-law) 1.38 None Modify
XRT Time to First Observation 105.1 sec Modify
UVOT Time to First Observation 110.0 sec Modify
UVOT Magnitude V>20.3 None Modify
UVOT Other Filter Magnitudes B>20.1|U>20.1|UVW1>20.1|UVM2>20.1|UVW2>20.2|White>21.2 None Modify
Swift Burst Advocate Jay Cummings None Modify
XRT RA (J2000) 280.589416667 deg Modify
XRT Dec (J2000) -30.0459722222 deg Modify
XRT 90% Error Radius 1.5 arcsec Modify
XRT Initial Temporal Index -1.571 None Modify
XRT Spectral Index (Gamma) 1.56873 None Modify
XRT Column Density (NH) 2.66034 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) 0.00106267024 10^-11 erg/cm^2/s Modify
XRT 24 Hour Flux (0.3-10 keV) 0.00031204628 10^-11 erg/cm^2/s Modify

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