/* ** ** 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 55730.156561 0.000434 0.39835 0.05642 0.96667 0 2.94682 0.22038 2.45904 0.18391 1.17386 0.14120 0.97684 0.11751 55730.157296 0.000301 0.34742 0.05838 1.00000 0 3.26778 0.28325 2.72581 0.23628 1.13529 0.16343 0.94815 0.13648 55730.158167 0.000570 0.32817 0.03911 0.96954 0 3.56271 0.21014 3.01149 0.17763 1.16916 0.12107 0.98826 0.10234 55730.159075 0.000339 0.30197 0.04893 0.95726 0 3.49058 0.27085 2.94707 0.22868 1.05404 0.14994 0.88971 0.12656 55730.159738 0.000324 0.35459 0.05891 0.96429 0 3.10273 0.26176 2.59421 0.21885 1.10018 0.15747 0.91785 0.13134 55730.160910 0.000848 0.36572 0.03640 0.97270 0 3.18733 0.16432 2.69427 0.13890 1.16567 0.09925 0.98539 0.08390 55730.162067 0.000310 0.37795 0.06354 0.98131 0 2.95512 0.26083 2.49797 0.22048 1.11689 0.15982 0.94407 0.13509 55730.162712 0.000336 0.31585 0.05267 0.99138 0 3.17948 0.25795 2.68594 0.21791 1.00424 0.14630 0.84842 0.12359 55730.163974 0.000926 0.47583 0.04130 0.98750 0 3.13050 0.15526 2.64756 0.13131 1.48958 0.10611 1.25971 0.08973 55730.166295 0.001395 0.38025 0.02849 0.98340 0 3.28166 0.12921 2.77061 0.10909 1.24785 0.07953 1.05410 0.06718