/* ** ** 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 56897.709282 0.000566 0.26572 0.06005 0.94872 1 56897.710720 0.000872 0.17643 0.03966 0.93333 1 56897.712376 0.000755 0.19894 0.04449 0.96154 1 56897.714380 0.001249 0.12259 0.02741 0.94186 1 56897.716661 0.001031 0.14246 0.03220 0.97183 1 56897.718898 0.001206 0.18197 0.03391 0.95001 1