! Swift/XRT lightcurve of trigger: 1047531, name: GRB 210509A ! T0 for this burst is Swift MET=642263567.424 s, = 2021 May 09 at 14:32:20.436 UT ! Data covers 0.3-10 keV ! The data are in 5 columns: "; ! time, time error (+ve), time error (-ve), source flux, source error ! For a detailed description of light curve production, see Evans et al. 2007 (A&A, 469, 379 ) ! For a detailed description of the file, see ! http://www.swift.ac.uk/xrt_curves/docs.php ! This lightcurve was obtained from http://www.swift.ac.uk/xrt_curves/01047531 ! BINMODE: GRB-like (counts) READ TERR 1 2 ! PC data !Time T_+ve T_-ve Flux Fluxpos Fluxneg 3327.249 133.055 -117.676 4.037882357e-12 9.10818869e-13 -9.10818869e-13 3592.655 148.468 -132.351 2.69660653e-12 7.03740942e-13 -7.03740942e-13 3912.765 109.176 -171.642 2.684779477e-12 7.00654219e-13 -7.00654219e-13 4108.155 116.879 -86.214 3.997197491e-12 1.006594399e-12 -1.006594399e-12 4362.831 170.602 -137.798 2.443343096e-12 6.40774574e-13 -6.40774574e-13 4710.047 222.041 -176.615 2.777074417e-12 6.00380507e-13 -6.00380507e-13 10303.207 508.479 -532.050 1.190240307e-12 2.527900574e-13 -2.527900574e-13