/*
**
**  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
   59921.669091       0.000188       35.62400        1.16553        1.00000     0
   59921.669464       0.000185       36.92448        1.19531        1.00000     0
   59921.669829       0.000179       37.34593        1.20933        1.00000     0
   59921.670193       0.000185       36.62388        1.17370        1.00000     0
   59921.670587       0.000208       33.05989        1.05752        1.00000     0
   59921.670989       0.000194       34.49515        1.12650        1.00000     0
   59921.671377       0.000194       35.53644        1.14295        1.00000     0
   59921.671756       0.000185       37.22214        1.18697        1.00000     0
   59921.672135       0.000194       35.55918        1.14416        1.00000     0
   59921.672511       0.000182       36.96608        1.19301        1.00000     0
   59921.672878       0.000185       36.53984        1.16824        1.00000     0
   59921.673260       0.000197       34.25884        1.10360        1.00000     0
   59921.673651       0.000194       35.43142        1.12617        1.00000     0
   59921.674033       0.000188       36.09461        1.17216        1.00000     0
   59921.674415       0.000194       35.15746        1.13403        1.00000     0
   59921.674811       0.000203       33.81324        1.08200        1.00000     0
   59921.675202       0.000188       37.03944        1.18580        1.00000     0
   59921.675595       0.000205       33.36398        1.07156        1.00000     0
   59921.676000       0.000200       34.25950        1.10807        1.00000     0
   59921.676400       0.000200       35.17104        1.11841        1.00000     0
   59921.676787       0.000188       36.75082        1.17967        1.00000     0
   59921.677172       0.000197       34.89081        1.11636        1.00000     0
   59921.677572       0.000203       33.32251        1.08016        1.00000     0
   59921.677954       0.000179       37.68953        1.21794        1.00000     0
   59921.678318       0.000185       36.77151        1.19606        1.00000     0
   59921.678819       0.000315       34.53284        0.88137        1.00000     0