/* ** ** 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 57434.095806 0.000434 19.23702 0.62325 0.99632 0 57434.096691 0.000451 18.82219 0.61126 1.00000 0 57434.097588 0.000446 19.10234 0.61701 1.00000 0 57434.098505 0.000472 18.28562 0.59215 0.99387 0 57434.099422 0.000446 19.30027 0.62856 1.00000 0 57434.100580 0.000712 18.30304 0.48467 1.00000 0