/* ** ** 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 57306.211930 0.000697 0.23004 0.05174 0.95833 1 57306.213208 0.000581 0.29002 0.06329 1.00000 1 57306.214239 0.000450 0.35508 0.07940 1.00000 1 57306.215198 0.000508 0.31808 0.07114 1.00000 1 57306.216287 0.000581 0.32329 0.07055 0.90000 1 57306.217391 0.000523 0.32342 0.07272 0.94444 1 57306.218524 0.000610 0.28968 0.06478 0.90476 1 57306.219628 0.000494 0.33600 0.07556 0.97059 1 57306.220645 0.000523 0.30711 0.06907 1.00000 1 57306.221575 0.000407 0.41141 0.09200 0.96429 1 57306.222795 0.000813 0.23433 0.04886 0.96667 1