/* ** ** 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 55681.070191 0.000712 0.42346 0.03626 0.96341 0 4.37069 0.20238 3.92988 0.18196 1.85082 0.13330 1.66512 0.11993 55681.071606 0.000703 0.36874 0.03106 0.99588 0 4.90993 0.21459 4.42210 0.19327 1.81046 0.13040 1.63071 0.11745 55681.073012 0.000703 0.41018 0.03507 0.98354 0 4.47105 0.20592 4.02549 0.18540 1.83394 0.13209 1.65118 0.11892 55681.074395 0.000680 0.45108 0.03881 0.98723 0 4.23994 0.20317 3.81731 0.18292 1.91256 0.13668 1.72199 0.12306 55681.075746 0.000671 0.47538 0.04138 0.97414 0 4.08905 0.20107 3.68156 0.18103 1.94384 0.13963 1.74998 0.12571 55681.077130 0.000712 0.41582 0.03537 0.97967 0 4.40381 0.20323 3.96375 0.18292 1.83119 0.13085 1.64821 0.11778 55681.078573 0.000732 0.41328 0.03508 0.98419 0 4.28908 0.19649 3.85996 0.17683 1.77261 0.12666 1.59526 0.11399 55681.080211 0.000906 0.42593 0.03162 0.98083 0 4.48224 0.18022 4.02771 0.16194 1.90913 0.11917 1.71424 0.10700