/*
**
**  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
   59970.174897       0.000156       40.27498        1.29285        1.00000     0
   59970.175209       0.000156       40.79567        1.30466        1.00000     0
   59970.175519       0.000153       41.18523        1.33548        1.00000     0
   59970.175834       0.000162       39.04414        1.26460        1.00000     0
   59970.176152       0.000156       41.11609        1.32371        1.00000     0
   59970.176474       0.000165       38.27339        1.23065        1.00000     0
   59970.176804       0.000165       38.20792        1.23178        1.00000     0
   59970.177122       0.000153       41.54606        1.34136        1.00000     0
   59970.177434       0.000159       39.83622        1.28857        1.00000     0
   59970.177753       0.000159       39.70520        1.27705        1.00000     0
   59970.178068       0.000156       40.89317        1.30887        1.00000     0
   59970.178386       0.000162       39.18729        1.25515        1.00000     0
   59970.178716       0.000168       37.69123        1.21164        1.00000     0
   59970.179052       0.000168       37.24960        1.20784        1.00000     0
   59970.179376       0.000156       41.15702        1.32664        1.00000     0
   59970.179697       0.000165       39.08704        1.26342        1.00000     0
   59970.180027       0.000165       38.66928        1.24121        1.00000     0
   59970.180354       0.000162       39.86687        1.28485        1.00000     0
   59970.180684       0.000168       38.26249        1.23528        1.00000     0
   59970.181016       0.000165       39.44242        1.25427        1.00000     0
   59970.181341       0.000159       40.95770        1.31009        1.00000     0
   59970.181662       0.000162       39.35998        1.26292        1.00000     0
   59970.181986       0.000162       40.08215        1.28344        1.00000     0
   59970.182316       0.000168       37.95350        1.23192        1.00000     0
   59970.182648       0.000165       38.55399        1.24013        1.00000     0
   59970.182973       0.000159       40.79321        1.31130        1.00000     0
   59970.183294       0.000162       40.61953        1.29433        1.00000     0
   59970.183731       0.000275       39.69188        0.97835        1.00000     0