/* ** ** 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 56576.232770 0.000770 0.38891 0.08788 0.98113 1 56576.234469 0.000930 0.37064 0.08334 0.95312 1 56576.236314 0.000915 0.35420 0.07964 1.00000 1 56576.237868 0.000639 0.53016 0.11857 0.97727 1 56576.239335 0.000828 0.40952 0.09207 0.96491 1 56576.240744 0.000581 0.62657 0.13676 0.95000 1 56576.242531 0.001206 0.45084 0.08351 0.90452 1