! Swift/XRT lightcurve of trigger: 21859, name: GRB 250916A ! T0 for this burst is Swift MET=779722197.356 s, = 2025 Sep 16 at 13:29:21.014 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/00021859 ! BINMODE: READ TERR 1 2 ! PC data !Time T_+ve T_-ve Flux Fluxpos Fluxneg 102568.558 446.137 -484.071 8.64355124e-13 2.08445621e-13 -2.08445621e-13 106865.713 374.950 -289.485 1.002731368e-12 2.658330477e-13 -2.658330477e-13 NO NO NO NO NO ! PC upper limits 781948.047 14612.021 -48181.442 1.8993657e-13 0 0 1734883.713 137.901 -137.901 7.671468e-12 0 0