/*
**
**  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
   59936.253262       0.000231       27.18800        0.87038        1.00000     0
   59936.253736       0.000243       26.30330        0.83623        1.00000     0
   59936.254216       0.000237       27.07693        0.85735        1.00000     0
   59936.254671       0.000217       29.27011        0.93452        1.00000     0
   59936.255116       0.000229       27.99683        0.88987        1.00000     0
   59936.255565       0.000220       29.20071        0.92917        1.00000     0
   59936.256025       0.000240       26.47530        0.84229        1.00000     0
   59936.256497       0.000231       27.34026        0.87682        1.00000     0
   59936.256965       0.000237       26.86837        0.85958        1.00000     0
   59936.257440       0.000237       26.91320        0.85978        1.00000     0
   59936.257912       0.000234       26.92476        0.86185        1.00000     0
   59936.258374       0.000229       27.84417        0.88812        1.00000     0
   59936.258826       0.000223       28.85220        0.92550        1.00000     0
   59936.259286       0.000237       27.01966        0.86338        1.00000     0
   59936.259746       0.000223       28.81618        0.91533        1.00000     0
   59936.260203       0.000234       27.31621        0.87129        1.00000     0
   59936.260652       0.000214       29.62387        0.94463        1.00000     0
   59936.261106       0.000240       26.64758        0.85386        1.00000     0
   59936.261566       0.000220       29.41269        0.94089        1.00000     0
   59936.262145       0.000359       28.68537        0.72407        1.00000     0