/* ** ** Swift/XRT light curve for Mrk 421. ** ** Data taken from the automatic processing at http://www.swift.psu.edu/monitoring/ ** ** When using these data and results in publications, please reference M.C. Stroh & A.D. Falcone 2013, ApJS, 207, 28; arXiv: 1305.4949. ** ** Key: ** ** BinCenter - Center of time bin (MJD) ** BinHW - One-half of the full time bin size (days) ** Rate - The background subtracted, PSF corrected and pile-up corrected source count rate (cts/s). ** RateError - 1 sigma error in source count rate (cts/s) ** FracExp - Conversion factor between bin size and observing time ** Mode - 0 if in Windowed Timing (WT) ** 1 if in Photon Counting (PC) ** ** ** Upper limits have an error listed as -1.00000. ** */ BinCenter BinHW Rate RateError FracExp Mode 53454.097914 0.000012 14.04092 2.86191 0.98651 0 53454.163189 0.000014 18.78535 3.22166 0.78921 0 53454.233328 0.000014 12.71234 2.65071 0.78921 0 53454.300700 0.000014 17.86665 3.19392 0.78921 0 53454.434034 0.000014 23.86032 3.59708 0.78850 0 53454.498617 0.000014 16.74711 3.05759 0.78850 0 53454.704867 0.000014 15.17876 2.86852 0.78850 0 53454.845828 0.000014 12.52498 2.68821 0.78707 0