/* ** ** 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 56890.443228 0.001075 0.14266 0.03207 0.94595 1 56890.445058 0.000755 0.19741 0.04462 0.96154 1 56890.446569 0.000755 0.20248 0.04486 0.98077 1 56890.448079 0.000755 0.19270 0.04309 1.00000 1 56890.449561 0.000726 0.19854 0.04488 1.00000 1 56890.451856 0.001569 0.15810 0.02779 0.95250 1