/* ** ** 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 56942.080325 0.000610 0.23550 0.05322 0.97619 1 56942.081865 0.000901 0.16930 0.03786 0.93548 1 56942.083375 0.000610 0.24052 0.05379 0.97619 1 56942.084566 0.000581 0.25227 0.05641 0.97500 1 56942.085787 0.000639 0.23397 0.05260 0.95455 1 56942.087341 0.000915 0.15701 0.03568 0.98413 1 56942.089055 0.000799 0.18395 0.04157 0.96364 1 56942.090406 0.000552 0.37384 0.07147 0.95833 1