/* ** ** 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 54422.431333 0.000260 28.01749 0.89764 1.00000 0 54422.431834 0.000240 28.85599 0.92603 1.00000 0 54422.432302 0.000229 30.27245 0.97674 1.00000 0 54422.432762 0.000231 29.67254 0.96242 1.00000 0 54422.433312 0.000318 30.21895 0.82507 0.99645 0 54422.482279 0.000200 31.86948 1.02070 0.98852 0 54422.482676 0.000197 33.15094 1.04986 1.00000 0 54422.483110 0.000237 31.11984 0.92758 0.99057 0 54422.499739 0.000200 32.78186 1.05553 0.98551 0 54422.500228 0.000289 32.52535 0.87864 0.99013 0