/* ** ** 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 54974.360521 0.000350 17.77312 0.57179 1.00000 0 54974.361213 0.000341 18.15653 0.58408 1.00000 0 54974.361907 0.000353 17.65367 0.56554 1.00000 0 54974.362590 0.000330 18.87210 0.60439 1.00000 0 54974.363259 0.000339 18.34923 0.58825 1.00000 0 54974.363927 0.000330 18.71422 0.60602 1.00000 0 54974.364595 0.000339 18.23573 0.59053 1.00000 0 54974.365463 0.000530 18.57130 0.47402 0.99588 0 54974.428843 0.000310 20.12383 0.64543 0.99837 0 54974.429488 0.000336 18.42391 0.59759 1.00000 0 54974.430154 0.000330 19.03920 0.60594 1.00000 0 54974.430808 0.000324 19.20291 0.61294 1.00000 0 54974.431476 0.000344 18.21482 0.58545 1.00000 0 54974.432150 0.000330 18.80343 0.60390 1.00000 0 54974.432906 0.000425 18.09574 0.52203 1.00000 0