/* ** ** 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 55920.511692 0.000706 0.15235 0.01163 0.97131 0 12.62826 0.35084 11.08614 0.30793 1.92398 0.13679 1.69025 0.12016 55920.513113 0.000715 0.14698 0.01130 0.96761 0 12.75849 0.34802 11.28080 0.30769 1.87519 0.13474 1.65902 0.11918 55920.514565 0.000738 0.14227 0.01092 0.98039 0 12.62344 0.34034 11.16242 0.30090 1.79593 0.12905 1.58602 0.11394 55920.516102 0.000799 0.12738 0.00963 0.97464 0 13.12782 0.33194 11.63670 0.29423 1.67225 0.11918 1.48173 0.10560 55920.517609 0.000709 0.14734 0.01138 0.96327 0 12.92796 0.35279 11.39726 0.31099 1.90482 0.13757 1.67978 0.12131 55920.518966 0.000648 0.15462 0.01190 0.97768 0 13.25312 0.37261 11.76983 0.33090 2.04919 0.14683 1.81968 0.13038 55920.520908 0.001293 0.14453 0.00816 0.98210 0 12.86829 0.26065 11.42978 0.23151 1.85987 0.09804 1.65178 0.08707