/* ** ** 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 56799.916429 0.001076 0.37721 0.03154 0.96774 0 3.44440 0.14975 2.92570 0.12720 1.29925 0.09280 1.10298 0.07878 56799.918512 0.001007 0.41372 0.03508 0.97414 0 3.32482 0.15285 2.83756 0.13045 1.37553 0.09800 1.17395 0.08364 56799.920401 0.000883 0.46862 0.04037 0.98361 0 3.34144 0.16352 2.85146 0.13954 1.56585 0.11100 1.33624 0.09472 56799.922320 0.001036 0.39441 0.03302 0.97486 0 3.42185 0.15249 2.92026 0.13013 1.34960 0.09567 1.15180 0.08164 56799.924400 0.001045 0.37613 0.03150 0.98061 0 3.52408 0.15506 2.99669 0.13184 1.32552 0.09443 1.12733 0.08031 56799.926611 0.001166 0.40291 0.03128 0.98759 0 3.44793 0.14447 2.93913 0.12314 1.38919 0.09081 1.18339 0.07736