/* ** ** Swift/XRT light curve for BL Lacertae. ** ** 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 58406.265094 0.001089 0.13480 0.03031 0.98667 1 58406.267099 0.000915 0.16302 0.03665 0.98413 1 58406.268987 0.000973 0.15428 0.03469 0.97015 1 58406.270861 0.000901 0.17645 0.03851 0.96774 1 58406.272386 0.000625 0.24119 0.05453 0.95349 1 58406.273998 0.000988 0.17795 0.03729 0.94282 1