/* ** ** 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 56911.515907 0.001104 0.17327 0.03904 0.90789 1 56911.517737 0.000726 0.23497 0.05310 0.96000 1 56911.519625 0.001162 0.14539 0.03285 0.96250 1 56911.521877 0.001089 0.15964 0.03589 0.94667 1 56911.523532 0.000566 0.30798 0.06887 0.94872 1 56911.525595 0.001467 0.22136 0.03690 0.91410 1