/* ** ** Swift/XRT hardness ratio for Mrk 421. ** Hardness ratio for this file has been calculated by splitting the data at 2.0 keV. ** ** 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). ** FracExp - Conversion factor between bin size and observing time. ** Ratio - Source hardness ratio (2.0 - 10.0 keV)/(0.3 - 2.0 keV). ** This is also Rate2/Rate1 from the following columns. ** RatioError - 1 sigma error in the hardness ratio. ** Mode - 0 if in Windowed Timing (WT). ** 1 if in Photon Counting (PC). ** Rate1 - The background subtracted, PSF corrected and pile-up corrected source count rate (cts/s) in the 0.3 - 2.0 keV band. ** RateError1 - 1 sigma error in source count rate (cts/s) in the 0.3 - 2.0 keV band. ** NetRate1 - Background subtracted count rate (cts/s) in the 0.3 - 2.0 keV band. ** NetError1 - Error in the background subtracted count rate (cts/s) in the 0.3 - 2.0 keV band. ** Rate2 - The background subtracted, PSF corrected and pile-up corrected source count rate (cts/s) in the 2.0 - 10.0 keV band. ** RateError2 - 1 sigma error in source count rate (cts/s) in the 2.0 - 10.0 keV band. ** NetRate2 - Background subtracted count rate (cts/s) in the 2.0 - 10.0 keV band. ** NetError2 - Error in the background subtracted count rate (cts/s) in the 2.0 - 10.0 keV band. ** ** ** Upper limits have an error listed as -1.00000. ** */ BinCenter BinHW Ratio RatioError FracExp Mode Rate1 RateError1 NetRate1 NetError1 Rate1 RateError2 NetRate2 NetError2 55972.321951 0.000842 0.10541 0.00809 0.99313 0 14.37443 0.33689 12.84940 0.30113 1.51524 0.11079 1.35491 0.09904 55972.323739 0.000946 0.10163 0.00769 0.97554 0 13.66655 0.30983 12.25758 0.27789 1.38898 0.10033 1.24575 0.08998 55972.325432 0.000747 0.12431 0.00956 0.99225 0 13.78728 0.34998 12.36170 0.31379 1.71384 0.12444 1.53667 0.11158 55972.327037 0.000859 0.10677 0.00810 0.98990 0 14.04106 0.33094 12.59001 0.29674 1.49918 0.10814 1.34425 0.09696 55972.328933 0.001036 0.08836 0.00669 0.98883 0 14.02668 0.30027 12.57673 0.26923 1.23943 0.09000 1.11127 0.08069 55972.330944 0.000975 0.09806 0.00724 0.97923 0 14.02419 0.30914 12.57302 0.27715 1.37519 0.09691 1.23291 0.08688