/* ** ** 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 56860.325930 0.000886 0.16730 0.03741 0.98361 1 56860.327557 0.000741 0.21850 0.04792 0.94118 1 56860.329184 0.000886 0.18323 0.03999 0.95082 1 56860.331072 0.001002 0.15285 0.03418 0.95652 1 56860.332917 0.000842 0.17578 0.03952 1.00000 1 56860.334907 0.001148 0.19026 0.03623 0.94937 1