/* ** ** 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 56645.505204 0.001235 0.27025 0.06142 0.97647 1 56645.507339 0.000901 0.40433 0.08823 0.96774 1 56645.509038 0.000799 0.45130 0.10145 0.92727 1 56645.510956 0.001118 0.30003 0.06815 0.98701 1 56645.513106 0.001031 0.35419 0.07886 0.94366 1 56645.515720 0.001583 0.38693 0.06468 0.98165 1