/* ** ** Swift/XRT hardness ratio for M87. ** 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 54506.108193 0.000622 0.23566 0.04216 0.76744 0 2.74119 0.22648 2.34936 0.19413 0.64598 0.10251 0.55380 0.08787 54506.109521 0.000700 0.22641 0.03872 0.73967 0 2.68007 0.20562 2.30672 0.17697 0.60679 0.09273 0.52226 0.07981 54506.110727 0.000506 0.32143 0.05686 0.74286 0 2.61309 0.23693 2.25008 0.20402 0.83993 0.12757 0.72307 0.10982 54506.112113 0.000880 0.25303 0.03476 0.80896 0 2.81634 0.19314 2.41924 0.16588 0.71261 0.08481 0.61220 0.07286 54506.113617 0.000610 0.27947 0.07400 0.66667 1 3.81299 0.42465 0.95633 0.10651 1.06563 0.25600 0.26676 0.06407 54506.115055 0.000799 0.27292 0.07062 0.60000 1 3.43102 0.35715 0.86107 0.08960 0.93640 0.22183 0.23524 0.05573 54506.116943 0.001089 0.35993 0.07525 0.52020 1 3.51966 0.31938 0.88439 0.08026 1.26683 0.23860 0.31865 0.06001