/* ** ** 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 56918.562789 0.000320 0.46629 0.10176 1.00000 1 56918.563632 0.000523 0.27706 0.06264 0.97222 1 56918.564561 0.000407 0.39629 0.08692 0.92857 1 56918.565375 0.000407 0.49099 0.09280 1.00000 1 56918.566217 0.000436 0.34424 0.07698 0.96667 1 56918.567350 0.000697 0.43742 0.06784 0.98579 1