/* ** ** 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 54919.503800 0.000992 0.41361 0.03500 0.97376 0 3.37971 0.15416 2.88046 0.13139 1.39787 0.09963 1.19124 0.08489 54919.505849 0.001056 0.40103 0.03382 0.98630 0 3.22453 0.14593 2.75907 0.12487 1.29314 0.09204 1.10650 0.07875 54919.507209 0.000304 0.31121 0.05033 1.00000 0 3.67571 0.29253 3.14527 0.25032 1.14393 0.16104 0.97883 0.13780 54919.507816 0.000304 0.32293 0.05216 0.98095 0 3.58812 0.28877 3.07127 0.24717 1.15873 0.16225 0.99194 0.13890 54919.509116 0.000995 0.38163 0.03197 0.98837 0 3.59559 0.15880 3.07864 0.13597 1.37218 0.09767 1.17474 0.08361 54919.511572 0.001461 0.40348 0.02766 0.98218 0 3.53675 0.13008 3.02528 0.11127 1.42701 0.08255 1.22063 0.07061