/* ** ** Swift/XRT hardness ratio for PKS 2155-304. ** 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 56504.746805 0.000344 0.14319 0.03537 0.99160 0 2.70630 0.23571 2.30732 0.20095 0.38753 0.08956 0.33005 0.07622 56504.747742 0.000593 0.08197 0.01909 0.98049 0 2.84379 0.18461 2.43317 0.15795 0.23310 0.05213 0.19934 0.04457 56504.748723 0.000388 0.14795 0.03556 0.97015 0 2.42966 0.21407 2.07650 0.18294 0.35947 0.08038 0.30821 0.06892 56504.749461 0.000350 0.14381 0.03488 0.96694 0 2.74256 0.23286 2.34745 0.19930 0.39442 0.08962 0.33766 0.07672 56504.750344 0.000532 0.08781 0.02148 0.98913 0 2.82534 0.19387 2.39785 0.16452 0.24809 0.05827 0.21091 0.04951 56504.751388 0.000512 0.10076 0.02368 0.99435 0 2.63255 0.19026 2.25968 0.16331 0.26525 0.05931 0.22765 0.05090 56504.752328 0.000428 0.12587 0.02986 0.95946 0 2.62841 0.20832 2.24432 0.17787 0.33085 0.07398 0.28216 0.06309 56504.753454 0.000697 0.12238 0.02201 0.98650 0 2.85840 0.17054 2.43979 0.14556 0.34982 0.05936 0.29863 0.05067