/* ** ** 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 56748.255471 0.000203 32.49165 1.01568 1.00000 0 56748.255879 0.000205 30.54616 0.97623 1.00000 0 56748.256279 0.000194 32.98906 1.05454 1.00000 0 56748.256666 0.000194 32.33096 1.03330 1.00000 0 56748.257060 0.000200 32.15439 1.03075 1.00000 0 56748.257453 0.000194 32.56720 1.03755 1.00000 0 56748.257850 0.000203 30.97028 0.99210 1.00000 0 56748.258238 0.000185 34.33982 1.09462 1.00000 0 56748.258727 0.000304 32.20941 0.83380 0.99055 0