/* ** ** 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 55170.433138 0.000191 0.44187 0.07421 0.98343 0 4.16419 0.38459 3.59343 0.33187 1.84002 0.25812 1.58888 0.22286 55170.472080 0.000813 0.44191 0.03796 0.97153 0 3.80698 0.18081 3.28512 0.15601 1.68235 0.12040 1.45211 0.10392 55170.473675 0.000781 0.48006 0.04161 0.97778 0 3.61515 0.17908 3.14496 0.15579 1.73550 0.12346 1.50965 0.10739 55170.475162 0.000706 0.50298 0.04384 0.96721 0 3.87671 0.19494 3.37340 0.16963 1.94990 0.13884 1.69675 0.12081 55170.476568 0.000700 0.53388 0.04687 0.97107 0 3.67847 0.19126 3.20109 0.16644 1.96385 0.13893 1.70898 0.12090 55170.477989 0.000720 0.51735 0.04587 0.97992 0 3.58937 0.18571 3.12359 0.16162 1.85698 0.13371 1.61601 0.11636 55170.479404 0.000694 0.50420 0.04463 0.98333 0 3.80698 0.19600 3.31374 0.17060 1.91948 0.13821 1.67079 0.12030 55170.480877 0.000778 0.41712 0.03547 0.95539 0 4.25934 0.19558 3.69899 0.16984 1.77668 0.12715 1.54252 0.11039 55170.482375 0.000720 0.48856 0.04270 0.97189 0 3.88006 0.19572 3.36842 0.16991 1.89564 0.13532 1.64640 0.11753 55170.483866 0.000758 0.47104 0.04074 0.98855 0 3.75897 0.18367 3.25792 0.15919 1.77061 0.12634 1.53470 0.10950 55170.485275 0.000651 0.54710 0.04870 0.98222 0 3.78227 0.20129 3.29017 0.17510 2.06929 0.14765 1.79858 0.12833 55170.486672 0.000747 0.47128 0.04086 0.97287 0 3.85956 0.18871 3.35925 0.16425 1.81894 0.13024 1.58315 0.11335 55170.488171 0.000752 0.46025 0.03965 0.97308 0 3.92229 0.18939 3.41354 0.16483 1.80524 0.12881 1.57109 0.11210 55170.489774 0.000851 0.40495 0.03426 0.96599 0 3.95547 0.17777 3.44237 0.15471 1.60178 0.11481 1.39400 0.09992 55170.491354 0.000723 0.47544 0.04138 0.98800 0 3.88424 0.19298 3.38028 0.16794 1.84671 0.13196 1.60711 0.11484 55170.493038 0.000961 0.44731 0.03516 0.97892 0 3.74703 0.16333 3.26070 0.14214 1.67609 0.10965 1.45854 0.09542