/* ** ** 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 55282.989584 0.000894 0.53822 0.04759 0.98058 0 2.80778 0.14617 2.43276 0.12664 1.51120 0.10800 1.31006 0.09362 55282.991465 0.000987 0.45730 0.03921 0.97361 0 3.03979 0.14635 2.63544 0.12688 1.39011 0.09864 1.20646 0.08561 55282.993253 0.000802 0.56683 0.05059 0.98556 0 2.96610 0.15988 2.57662 0.13887 1.68128 0.11960 1.45986 0.10385 55282.995047 0.000987 0.47444 0.04114 0.97067 0 2.90955 0.14296 2.52808 0.12421 1.38040 0.09865 1.19924 0.08570 55282.996974 0.000940 0.50817 0.04435 0.98154 0 2.85017 0.14455 2.46198 0.12485 1.44837 0.10288 1.25101 0.08886 55282.998942 0.001027 0.53480 0.04503 0.98310 0 2.74213 0.13636 2.35884 0.11729 1.46648 0.09964 1.26062 0.08565