/* ** ** 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 59138.261115 0.000886 0.18507 0.04039 0.98361 1 59138.262626 0.000625 0.24995 0.05589 0.97674 1 59138.263817 0.000566 0.29155 0.06394 0.97436 1 59138.265124 0.000741 0.21359 0.04776 0.98039 1 59138.266605 0.000741 0.21811 0.04784 1.00000 1 59138.267738 0.000392 0.39142 0.08845 1.00000 1 59138.268871 0.000741 0.21671 0.04872 0.96078 1 59138.270353 0.000741 0.23957 0.05156 0.96078 1 59138.271878 0.000784 0.20884 0.04670 0.94444 1 59138.273098 0.000436 0.37936 0.08528 0.93333 1 59138.274536 0.001002 0.15771 0.03527 0.98551 1 59138.277340 0.001801 0.15906 0.02659 0.96383 1