/* ** ** 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 57936.412829 0.001118 0.14250 0.03188 0.96104 1 57936.414616 0.000668 0.22800 0.05098 0.97826 1 57936.416097 0.000813 0.19280 0.04334 0.94643 1 57936.417463 0.000552 0.27765 0.06209 0.97368 1 57936.418785 0.000770 0.20100 0.04495 0.96226 1 57936.420528 0.000973 0.26015 0.04518 0.98441 1