/* ** ** Swift/XRT light curve for Mrk 421. ** ** 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 57749.177393 0.000310 20.26136 0.64764 1.00000 0 57749.177995 0.000292 21.20362 0.68254 1.00000 0 57749.178588 0.000301 20.73882 0.66698 1.00000 0 57749.179198 0.000310 20.58755 0.65972 1.00000 0 57749.179806 0.000298 20.74828 0.67203 1.00000 0 57749.180405 0.000301 20.89062 0.66505 1.00000 0 57749.181010 0.000304 20.37892 0.65666 1.00000 0 57749.181594 0.000281 22.42286 0.71565 1.00000 0 57749.182161 0.000286 21.65699 0.69537 1.00000 0 57749.182743 0.000295 21.01808 0.67315 1.00000 0 57749.183539 0.000501 21.76503 0.52624 0.99987 0 57749.247404 0.000136 21.80280 1.58445 0.99126 0 57749.247919 0.000379 27.08391 0.88648 1.00000 0 57749.248695 0.000396 28.18144 0.91495 1.00000 0 57749.249534 0.000443 27.20881 0.85667 0.99346 0