/*
**
**  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
   57451.266139       0.000119       13.27408        0.94150        1.00000     0
   57451.266435       0.000177       12.34784        0.72617        1.00000     0
   57451.266733       0.000122       12.47691        0.89080        1.00000     0
   57451.267019       0.000165       12.94441        0.78837        1.00000     0
   57451.267306       0.000122       12.90864        0.92885        1.00000     0
   57451.267557       0.000130       12.33256        0.88697        1.00000     0
   57451.267806       0.000119       13.07731        0.94238        1.00000     0
   57451.268486       0.000561       13.66862        0.44063        0.99485     0
   57451.269166       0.000119       12.73129        0.92253        1.00000     0
   57451.269421       0.000136       11.30709        0.80977        1.00000     0
   57451.269681       0.000124       12.25014        0.88427        1.00000     0
   57451.269927       0.000122       13.06242        0.92842        1.00000     0
   57451.270167       0.000119       12.58494        0.93230        1.00000     0
   57451.270410       0.000124       11.99778        0.87410        1.00000     0
   57451.270659       0.000124       12.00363        0.87447        1.00000     0
   57451.270908       0.000124       12.13085        0.87845        1.00000     0
   57451.271151       0.000119       13.19856        0.93242        1.00000     0
   57451.271397       0.000127       12.16215        0.87807        1.00000     0
   57451.271686       0.000162       12.94316        0.79115        1.00000     0
   57451.271970       0.000122       12.50249        0.89057        1.00000     0
   57451.272497       0.000405       13.12244        0.50140        1.00000     0
   57451.273020       0.000119       12.78101        0.92175        1.00000     0
   57451.273258       0.000119       13.15971        0.94910        1.00000     0
   57451.273642       0.000266       12.93243        0.61769        1.00000     0
   57451.274233       0.000324       12.99526        0.55946        1.00000     0
   57451.274863       0.000307       13.23162        0.58467        1.00000     0
   57451.275300       0.000130       11.54747        0.83286        1.00000     0
   57451.275995       0.000564       13.40542        0.43112        1.00000     0
   57451.276686       0.000127       12.82940        0.88756        1.00000     0
   57451.276938       0.000124       12.93176        0.91114        1.00000     0