/* ** ** 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 54974.642463 0.000278 22.78620 0.73106 1.00000 0 54974.643010 0.000269 23.51515 0.75408 1.00000 0 54974.643551 0.000272 23.15527 0.74090 1.00000 0 54974.644109 0.000286 21.83182 0.70575 1.00000 0 54974.644673 0.000278 22.52352 0.72239 1.00000 0 54974.645220 0.000269 23.24481 0.74553 1.00000 0 54974.645756 0.000266 23.70769 0.76140 1.00000 0 54974.646291 0.000269 23.50220 0.74773 1.00000 0 54974.646826 0.000266 23.67529 0.75933 1.00000 0 54974.647359 0.000266 23.61915 0.75653 1.00000 0 54974.647891 0.000266 23.67999 0.75857 1.00000 0 54974.648418 0.000260 24.28988 0.77447 1.00000 0 54974.648947 0.000269 23.44370 0.75135 1.00000 0 54974.649500 0.000284 22.09391 0.71199 1.00000 0 54974.650050 0.000266 23.87991 0.75993 1.00000 0 54974.650588 0.000272 23.02386 0.73624 1.00000 0 54974.651126 0.000266 23.73928 0.75956 1.00000 0 54974.651667 0.000275 22.78916 0.74065 1.00000 0 54974.652223 0.000281 22.77730 0.72203 1.00000 0 54974.652784 0.000281 22.32452 0.71564 1.00000 0 54974.653403 0.000339 22.46935 0.65370 1.00000 0