/* ** ** 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 56498.491060 0.000637 0.62891 0.08978 0.96818 0 56498.492145 0.000448 0.88153 0.12744 0.96129 0 56498.493254 0.000660 0.61767 0.08843 0.94298 0 56498.494588 0.000674 0.61513 0.08830 0.92704 0 56498.495586 0.000324 0.53360 0.11932 0.90179 0 56498.496555 0.000645 0.67024 0.09643 0.88341 0 56498.497727 0.000527 0.76177 0.11207 0.92857 0 56498.498589 0.000336 0.50228 0.11372 0.91379 0 56498.499588 0.000663 0.52829 0.08507 0.87773 0 56498.500566 0.000315 0.53234 0.11904 0.92661 0 56498.501463 0.000582 0.56241 0.09212 0.89552 0