/* ** ** 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 56976.129939 0.000479 0.30015 0.06785 0.96970 1 56976.130999 0.000581 0.25071 0.05606 0.97500 1 56976.132001 0.000421 0.34748 0.07770 0.96552 1 56976.132858 0.000436 0.32855 0.07347 1.00000 1 56976.133831 0.000537 0.27268 0.06012 1.00000 1 56976.134834 0.000465 0.30311 0.06778 1.00000 1 56976.135821 0.000523 0.27786 0.06247 0.97222 1 56976.136867 0.000523 0.27606 0.06206 0.97222 1 56976.137942 0.000552 0.29438 0.06583 0.86842 1 56976.139191 0.000697 0.21012 0.04724 0.95833 1 56976.140760 0.000872 0.22505 0.04432 0.93074 1