! Swift/XRT lightcurve of trigger: 21462, name: GRB 210901B - source 2 ! T0 for this burst is Swift MET=652147287.808 s, = 2021 Sep 01 at 00:01:00.000 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/00021462 ! BINMODE: GRB-like (counts) READ TERR 1 2 ! PC data !Time T_+ve T_-ve Flux Fluxpos Fluxneg 247612.582 4057.987 -2059.172 3.41358562594848e-13 9.11960907575372e-14 -9.11960907575372e-14 259434.011 3877.298 -2494.432 3.37269860575161e-13 1.11938093601015e-13 -1.11938093601015e-13 NO NO NO NO NO ! PC upper limits 270379.884 470.119 -179.272 6.05965930837342e-13 0 0