/* ** ** 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 58246.185784 0.000414 0.42493 0.07246 0.99301 0 1.93851 0.18464 1.65833 0.15795 0.82374 0.11650 0.70540 0.09976 58246.186673 0.000475 0.36840 0.06154 0.98171 0 1.96234 0.17179 1.67930 0.14699 0.72293 0.10284 0.61893 0.08804 58246.187657 0.000509 0.37084 0.06184 0.96591 0 1.84325 0.16038 1.58492 0.13790 0.68356 0.09724 0.58616 0.08338 58246.188588 0.000422 0.45592 0.07878 0.96575 0 1.81521 0.17802 1.55272 0.15230 0.82760 0.11773 0.70672 0.10053 58246.189581 0.000570 0.34795 0.05786 0.98477 0 1.72143 0.14828 1.47482 0.12703 0.59898 0.08521 0.51364 0.07307 58246.190834 0.000683 0.30474 0.04587 0.96633 0 1.94821 0.14333 1.67092 0.12292 0.59371 0.07796 0.50950 0.06690