/* ** ** Swift/XRT hardness ratio for PKS 2155-304. ** 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 56172.790297 0.000975 0.12113 0.01814 0.64686 0 4.56538 0.22469 3.80177 0.18709 0.55303 0.07821 0.45950 0.06498 56172.791779 0.000506 0.15186 0.02321 0.97143 0 4.59944 0.25698 3.85763 0.21553 0.69846 0.09938 0.58605 0.08339 56172.793034 0.000749 0.11356 0.01716 0.79152 0 5.07164 0.24546 4.25821 0.20609 0.57592 0.08245 0.48335 0.06920 56172.794652 0.000868 0.12369 0.01863 0.66348 0 4.82517 0.23827 4.04626 0.19980 0.59683 0.08492 0.50053 0.07122 56172.796130 0.000611 0.12031 0.01807 0.96682 0 4.91665 0.24494 4.11563 0.20503 0.59152 0.08383 0.49555 0.07023 56172.797054 0.000312 0.09870 0.02310 0.93519 0 4.78368 0.33060 4.01972 0.27780 0.47214 0.10557 0.39670 0.08870 56172.797676 0.000310 0.09558 0.02237 0.96262 0 4.84015 0.33500 4.06672 0.28147 0.46261 0.10344 0.38900 0.08698 56172.798280 0.000295 0.08996 0.02101 0.99020 0 5.23968 0.35411 4.40953 0.29800 0.47134 0.10539 0.39670 0.08870 56172.799146 0.000570 0.12845 0.01942 0.97462 0 4.80717 0.24522 4.04129 0.20615 0.61746 0.08786 0.51890 0.07383 56172.800534 0.000819 0.12488 0.01790 0.80569 0 4.65060 0.22199 3.89820 0.18607 0.58079 0.07848 0.48730 0.06583