/* ** ** Swift/XRT hardness ratio for 3C 273. ** 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 58171.393109 0.001010 0.32468 0.08522 0.96562 0 1.77110 0.23335 0.39150 0.05004 0.57503 0.13053 0.11826 0.02659 58171.395157 0.001039 0.37922 0.10052 0.97214 0 1.46282 0.20743 0.30729 0.04351 0.55472 0.12422 0.11480 0.02567 58171.397102 0.000906 0.32713 0.08483 0.95847 0 1.86930 0.24533 0.40885 0.05364 0.61150 0.13677 0.13356 0.02986 58171.399003 0.000995 0.30862 0.08027 0.97674 0 1.74627 0.22807 0.37992 0.04961 0.53894 0.12122 0.11861 0.02667 58171.400693 0.000694 0.41080 0.11392 0.95417 0 1.85412 0.28018 0.40915 0.06184 0.76167 0.17710 0.16842 0.03920 58171.402409 0.001021 0.49727 0.10412 0.94618 0 1.87172 0.23121 0.42098 0.05200 0.93075 0.15736 0.20993 0.03548