/* ** ** 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 56856.209168 0.000668 0.22419 0.05040 0.95652 1 56856.210766 0.000930 0.15253 0.03429 1.00000 1 56856.212334 0.000639 0.23734 0.05364 0.93182 1 56856.213569 0.000596 0.25297 0.05657 0.95122 1 56856.214920 0.000755 0.20913 0.04676 0.90385 1 56856.216852 0.001177 0.20940 0.03702 0.93544 1