/* ** ** 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 54926.980620 0.000200 31.81051 1.00671 1.00000 0 54926.981017 0.000197 31.94206 1.01832 1.00000 0 54926.981413 0.000200 31.41560 1.00118 1.00000 0 54926.981815 0.000203 31.05446 0.98639 1.00000 0 54926.982215 0.000197 32.16541 1.02216 1.00000 0 54926.982608 0.000197 32.80972 1.04839 1.00000 0 54926.983005 0.000200 31.59446 1.00816 1.00000 0 54926.983398 0.000194 32.54760 1.03329 1.00000 0 54926.983792 0.000200 32.34234 1.02767 1.00000 0 54926.984191 0.000200 31.34381 0.99767 1.00000 0 54926.984587 0.000197 31.70390 1.01434 1.00000 0 54926.985088 0.000304 32.52169 0.83106 0.99731 0