/* ** ** 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 57012.151783 0.000683 0.26110 0.05877 0.95745 1 57012.153700 0.001235 0.14722 0.03292 0.96471 1 57012.155632 0.000697 0.25722 0.05752 0.97917 1 57012.156925 0.000596 0.29903 0.06760 0.97561 1 57012.158610 0.001089 0.17369 0.03884 0.92000 1 57012.161776 0.002077 0.16596 0.02665 0.98502 1