/* ** ** 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 56716.142969 0.000959 0.16271 0.03676 0.93939 1 56716.144509 0.000581 0.24911 0.05628 1.00000 1 56716.145773 0.000683 0.23079 0.05241 0.91489 1 56716.147109 0.000654 0.22535 0.05117 0.97778 1 56716.148228 0.000465 0.32138 0.07260 0.96875 1 56716.149491 0.000799 0.18301 0.04092 1.00000 1 56716.151162 0.000872 0.23323 0.04592 0.93330 1