/* ** ** 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 57570.290188 0.001007 0.43292 0.03707 0.98851 0 3.12595 0.14751 2.66292 0.12565 1.35328 0.09669 1.15418 0.08246 57570.292193 0.000998 0.42023 0.03555 0.98841 0 3.25018 0.15047 2.79133 0.12923 1.36581 0.09672 1.17346 0.08310 57570.294082 0.000891 0.49030 0.04271 0.99675 0 3.09207 0.15553 2.64846 0.13320 1.51605 0.10784 1.29835 0.09235 57570.295324 0.000350 0.40063 0.06202 0.98347 0 2.92458 0.24497 2.47330 0.20718 1.17168 0.15255 0.99325 0.12931 57570.296721 0.001047 0.43035 0.03669 0.98619 0 3.03741 0.14221 2.59988 0.12173 1.30715 0.09315 1.11776 0.07965 57570.298880 0.001111 0.43836 0.03573 0.99219 0 3.07227 0.13933 2.63536 0.11951 1.34676 0.09120 1.15524 0.07823