/* ** ** 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 57031.792272 0.000712 0.20593 0.04630 0.95918 1 57031.793681 0.000697 0.20811 0.04654 0.97917 1 57031.795221 0.000842 0.18500 0.04058 0.94828 1 57031.797138 0.001075 0.13870 0.03102 0.94595 1 57031.799085 0.000872 0.17942 0.04034 0.90000 1 57031.801365 0.001409 0.15424 0.02926 0.90840 1