/* ** ** 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 56785.982789 0.000295 0.52353 0.09400 1.00000 0 2.18539 0.23166 1.83811 0.19484 1.14412 0.16581 0.96111 0.13927 56785.983393 0.000310 0.45717 0.07951 0.96262 0 2.46169 0.23666 2.08349 0.20030 1.12541 0.16310 0.95178 0.13792 56785.984004 0.000301 0.34283 0.05754 0.98077 0 3.28746 0.27842 2.80472 0.23754 1.12705 0.16331 0.96111 0.13927 56785.984612 0.000307 0.42376 0.07208 0.98113 0 2.65735 0.24759 2.26010 0.21057 1.12608 0.16024 0.95801 0.13631 56785.985726 0.000807 0.41159 0.04246 0.98566 0 2.81578 0.15795 2.39660 0.13443 1.15895 0.10034 0.98639 0.08540 56785.986866 0.000333 0.35514 0.05925 0.97391 0 2.94661 0.25117 2.51497 0.21437 1.04645 0.15008 0.89319 0.12809 56785.987586 0.000388 0.32247 0.05291 0.97761 0 2.81543 0.22882 2.38230 0.19361 0.90789 0.12941 0.76771 0.10944 56785.988310 0.000336 0.39723 0.06780 0.98276 0 2.58469 0.23674 2.17988 0.19964 1.02671 0.14786 0.86462 0.12452 56785.989001 0.000356 0.44359 0.06931 0.98374 0 2.62623 0.22859 2.23153 0.19423 1.16496 0.15116 0.98898 0.12832 56785.989800 0.000443 0.39939 0.05695 0.95809 0 2.79595 0.21295 2.37678 0.18102 1.11669 0.13463 0.94938 0.11446