/* ** ** 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 57872.566247 0.001002 0.18344 0.04118 0.97101 1 57872.568557 0.001307 0.13732 0.03083 0.97778 1 57872.571055 0.001191 0.14922 0.03350 0.98780 1 57872.573757 0.001511 0.11727 0.02622 0.98077 1 57872.577214 0.001946 0.14560 0.02629 0.95138 1 57872.645440 0.004517 0.11784 0.02519 0.95550 1