/*
**
**  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
   57171.897489       0.000119       52.61154        1.69003        1.00000     0
   57171.897724       0.000116       55.25200        1.74686        1.00000     0
   57171.897958       0.000119       53.91282        1.72107        1.00000     0
   57171.898198       0.000122       51.74207        1.65058        1.00000     0
   57171.898436       0.000116       53.98365        1.72324        1.00000     0
   57171.898664       0.000113       57.31531        1.81538        1.00000     0
   57171.898899       0.000122       52.77835        1.67960        1.00000     0
   57171.899139       0.000119       53.94741        1.71450        1.00000     0
   57171.899376       0.000119       52.73257        1.69494        1.00000     0
   57171.899610       0.000116       54.40194        1.73588        1.00000     0
   57171.899845       0.000119       53.28970        1.69957        1.00000     0
   57171.900079       0.000116       55.17481        1.75586        1.00000     0
   57171.900316       0.000122       52.24545        1.66602        1.00000     0
   57171.900559       0.000122       52.07564        1.67943        1.00000     0
   57171.900797       0.000116       54.98210        1.75032        1.00000     0
   57171.901028       0.000116       55.40396        1.75801        1.00000     0
   57171.901260       0.000116       56.06956        1.78634        1.00000     0
   57171.901497       0.000122       53.79384        1.70647        1.00000     0
   57171.901746       0.000127       49.66167        1.57812        1.00000     0
   57171.901983       0.000110       57.56774        1.83966        1.00000     0
   57171.902214       0.000122       52.63011        1.66276        1.00000     0
   57171.902458       0.000122       51.49691        1.64563        1.00000     0
   57171.902703       0.000124       51.01660        1.63169        1.00000     0
   57171.902947       0.000119       52.90544        1.69071        1.00000     0
   57171.903192       0.000127       49.33617        1.58195        1.00000     0
   57171.903441       0.000122       51.42507        1.65583        1.00000     0
   57171.903690       0.000127       50.61731        1.60526        1.00000     0
   57171.903945       0.000127       50.47475        1.61772        1.00000     0
   57171.904191       0.000119       54.28931        1.73623        1.00000     0
   57171.904434       0.000124       51.18226        1.65876        1.00000     0
   57171.904683       0.000124       50.46310        1.61950        1.00000     0
   57171.904934       0.000127       50.79108        1.61696        1.00000     0
   57171.905183       0.000122       52.62741        1.68115        1.00000     0
   57171.905429       0.000124       51.15606        1.63652        1.00000     0
   57171.905678       0.000124       51.78178        1.64795        1.00000     0
   57171.905924       0.000122       52.05285        1.67212        1.00000     0
   57171.906170       0.000124       52.17907        1.64528        1.00000     0
   57171.906419       0.000124       51.67794        1.64963        1.00000     0
   57171.906668       0.000124       51.51438        1.63999        1.00000     0
   57171.906911       0.000119       54.29040        1.73490        1.00000     0
   57171.907151       0.000122       53.40284        1.69427        1.00000     0
   57171.907400       0.000127       50.29019        1.61456        1.00000     0
   57171.907646       0.000119       53.64460        1.71843        1.00000     0
   57171.907889       0.000124       51.75087        1.64079        1.00000     0
   57171.908135       0.000122       52.77820        1.68708        1.00000     0
   57171.908381       0.000124       51.41532        1.65284        1.00000     0
   57171.908627       0.000122       51.87834        1.66908        1.00000     0
   57171.908872       0.000124       52.63259        1.65252        1.00000     0