/* ** ** 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 56317.794725 0.000538 1.05660 0.15244 0.93011 0 56317.795701 0.000437 0.69626 0.12984 0.96689 0 56317.796809 0.000671 0.80954 0.11510 0.93103 0 56317.798053 0.000573 0.65639 0.11221 0.94163 0 56317.861169 0.000668 0.62025 0.09026 0.91647 0 56317.862541 0.000703 0.57507 0.08332 0.95062 0 56317.864242 0.000998 0.70191 0.07681 0.94095 0