/* ** ** 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 56270.242867 0.000307 1.15810 0.16687 0.95283 0 56270.244149 0.000975 1.45378 0.10585 0.95252 0 56270.245775 0.000651 1.17246 0.11528 0.95556 0 56270.247503 0.001076 1.33899 0.09627 0.94624 0 56270.249632 0.001053 1.37783 0.09997 0.93407 0 56270.252752 0.002066 1.32086 0.06874 0.96499 0