/*
**
**  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
   55336.908002       0.000214       29.23288        0.93481        1.00000     0
   55336.908444       0.000229       27.57054        0.87505        1.00000     0
   55336.908904       0.000231       27.30943        0.86911        1.00000     0
   55336.909365       0.000229       27.54197        0.88574        1.00000     0
   55336.909825       0.000231       27.12602        0.87158        1.00000     0
   55336.910276       0.000220       28.18080        0.90567        1.00000     0
   55336.910713       0.000217       28.84158        0.92158        1.00000     0
   55336.911159       0.000229       27.59154        0.88016        1.00000     0
   55336.911621       0.000234       26.51286        0.85282        1.00000     0
   55336.912079       0.000223       28.51086        0.90393        1.00000     0
   55336.912518       0.000217       28.60830        0.91729        1.00000     0
   55336.912955       0.000220       28.67086        0.91665        1.00000     0
   55336.913395       0.000220       28.59167        0.90987        1.00000     0
   55336.913844       0.000229       27.32731        0.89004        1.00000     0
   55336.914310       0.000237       26.65585        0.85689        1.00000     0
   55336.914773       0.000226       28.52304        0.90753        1.00000     0
   55336.915212       0.000214       29.71272        0.95171        1.00000     0
   55336.915655       0.000229       27.57359        0.89130        1.00000     0
   55336.916101       0.000217       29.42443        0.94176        1.00000     0
   55336.916546       0.000229       27.89987        0.89094        1.00000     0
   55336.917001       0.000226       28.31590        0.89860        1.00000     0
   55336.917455       0.000229       28.19971        0.90061        1.00000     0
   55336.917909       0.000226       28.24221        0.90282        1.00000     0
   55336.918355       0.000220       28.68422        0.91931        1.00000     0
   55336.918786       0.000211       29.90535        0.96236        1.00000     0
   55336.919223       0.000226       28.19870        0.90072        1.00000     0
   55336.919686       0.000237       26.22640        0.84928        1.00000     0
   55336.920131       0.000208       30.20236        0.96580        1.00000     0
   55336.920568       0.000229       27.67307        0.89202        1.00000     0