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GRB 170531A

Measurement Value Units
Swift Trigger Time May 31, 2017, 3:07 p.m. UT Modify
Swift Trigger Number 755343 None Modify
BAT RA (J2000) 121.218 deg Modify
BAT Dec (J2000) -14.017 deg Modify
BAT 90% Error Radius 2.4 arcmin Modify
BAT T90 26.74 sec Modify
BAT Fluence (15-150 keV) 7.5 10^-7 erg/cm^2 Modify
BAT Photon Index (15-150 keV) (PL = simple power-law) 1.22 None Modify
XRT Time to First Observation 122.64 sec Modify
UVOT Time to First Observation 3523.0 sec Modify
UVOT Magnitude V>17.5 None Modify
UVOT Other Filter Magnitudes B>18.2|U>18.0|UVW2>19.4|White>18.2 None Modify
Swift Comments UVOT: no detection None Modify
Swift Burst Advocate Phil Evans None Modify
XRT RA (J2000) 121.252375 deg Modify
XRT Dec (J2000) -14.0227222222 deg Modify
XRT 90% Error Radius 3.5 arcsec Modify
XRT Initial Temporal Index -0.6245 None Modify
XRT Spectral Index (Gamma) 2.24635 None Modify
XRT Column Density (NH) 5.59508 10^21 cm^-2 Modify
XRT 11 Hour Flux (0.3-10 keV) 0.0078343944 10^-11 erg/cm^2/s Modify
XRT 24 Hour Flux (0.3-10 keV) 0.0048130104 10^-11 erg/cm^2/s Modify
XRT Early Flux (0.3-10 keV) 29.2 10^-11 erg/cm^2/s Modify

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