/* ** ** 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 56791.022483 0.000407 0.35018 0.07831 1.00000 1 56791.023616 0.000726 0.20364 0.04578 0.96000 1 56791.025184 0.000842 0.16615 0.03756 1.00000 1 56791.026666 0.000639 0.24427 0.05331 0.95455 1 56791.028583 0.001278 0.14946 0.02956 0.95484 1