/*
**
**  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
   55988.631392       0.000153       10.37112        0.74378        1.00000     0
   55988.631754       0.000208       10.63738        0.80234        1.00000     0
   55988.632168       0.000205       10.95035        0.79725        1.00000     0
   55988.632552       0.000179       11.26950        0.80825        0.98387     0
   55988.632929       0.000197       10.18956        0.72855        0.98529     0
   55988.633328       0.000203        9.58515        0.69186        1.00000     0
   55988.633727       0.000197       10.10630        0.72185        1.00000     0
   55988.634112       0.000188       10.45026        0.76136        1.00000     0
   55988.634485       0.000185       10.71409        0.77539        1.00000     0
   55988.634885       0.000214        9.50933        0.68510        0.98649     0
   55988.635295       0.000197       10.20580        0.73668        0.98529     0
   55988.635674       0.000182       10.89282        0.78381        1.00000     0
   55988.636068       0.000211        9.61235        0.68924        0.98630     0
   55988.636482       0.000203        9.87885        0.71126        0.98571     0
   55988.636861       0.000177       11.45051        0.82285        1.00000     0
   55988.637246       0.000208        9.32274        0.68151        1.00000     0
   55988.637630       0.000177       10.99274        0.79032        1.00000     0
   55988.637998       0.000191       10.32160        0.74750        1.00000     0
   55988.638380       0.000191       10.10881        0.75214        1.00000     0
   55988.638768       0.000197       10.21933        0.73785        0.98529     0
   55988.639141       0.000177       11.36271        0.82187        1.00000     0
   55988.639534       0.000217        8.98638        0.65034        1.00000     0
   55988.639948       0.000197        9.67115        0.72691        1.00000     0
   55988.640356       0.000205       10.12296        0.72269        0.97183     0
   55988.640755       0.000194       10.15391        0.73238        1.00000     0
   55988.641135       0.000185       10.83143        0.77358        1.00000     0
   55988.641531       0.000211        9.30898        0.67593        1.00000     0
   55988.641942       0.000200       10.07779        0.71423        1.00000     0
   55988.642356       0.000214        9.81597        0.69505        0.97297     0
   55988.642787       0.000217        9.10721        0.66843        0.98667     0
   55988.643368       0.000365        9.04080        0.50859        1.00000     0