/* ** ** Swift/XRT light curve for Mrk 421. ** ** 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) ** Rate - The background subtracted, PSF corrected and pile-up corrected source count rate (cts/s). ** RateError - 1 sigma error in source count rate (cts/s) ** FracExp - Conversion factor between bin size and observing time ** Mode - 0 if in Windowed Timing (WT) ** 1 if in Photon Counting (PC) ** ** ** Upper limits have an error listed as -1.00000. ** */ BinCenter BinHW Rate RateError FracExp Mode 58247.971943 0.000359 17.33216 0.56294 1.00000 0 58247.972657 0.000356 17.56634 0.57135 1.00000 0 58247.973363 0.000350 17.83944 0.57734 1.00000 0 58247.974037 0.000324 19.16760 0.62255 1.00000 0 58247.974715 0.000353 17.64973 0.57026 1.00000 0 58247.975415 0.000347 17.90997 0.58426 1.00000 0 58247.976118 0.000356 17.58378 0.56719 1.00000 0 58247.976812 0.000339 18.60725 0.60127 1.00000 0 58247.977518 0.000367 17.01250 0.54905 1.00000 0 58247.978239 0.000353 17.92821 0.57610 0.99180 0 58247.978939 0.000347 17.85231 0.58175 1.00000 0 58247.979628 0.000341 18.42966 0.58863 1.00000 0 58247.980325 0.000356 17.62779 0.56595 1.00000 0 58247.981309 0.000628 18.17234 0.43289 1.00000 0