/*
**
**  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
   55240.003458       0.000421       27.20199        1.41375        0.99892     1
   55240.004859       0.000188       34.62878        1.11072        1.00000     0
   55240.005241       0.000194       33.33507        1.07712        1.00000     0
   55240.005640       0.000205       31.31919        1.00633        1.00000     0
   55240.006031       0.000185       35.04137        1.11934        1.00000     0
   55240.006407       0.000191       34.29197        1.09217        1.00000     0
   55240.006786       0.000188       34.34988        1.08774        1.00000     0
   55240.007159       0.000185       34.60688        1.10415        1.00000     0
   55240.007530       0.000185       35.28410        1.12762        1.00000     0
   55240.007903       0.000188       34.24483        1.10468        1.00000     0
   55240.008282       0.000191       33.24336        1.07750        1.00000     0
   55240.008661       0.000188       34.12646        1.09668        1.00000     0
   55240.009037       0.000188       34.08639        1.10349        1.00000     0
   55240.009411       0.000185       35.45316        1.12344        1.00000     0
   55240.009778       0.000182       35.15812        1.12669        1.00000     0
   55240.010157       0.000197       32.50653        1.04649        1.00000     0
   55240.010545       0.000191       33.66451        1.07307        1.00000     0
   55240.010921       0.000185       34.67989        1.11190        1.00000     0
   55240.011300       0.000194       34.01824        1.08085        1.00000     0
   55240.011679       0.000185       34.40529        1.10229        1.00000     0
   55240.012058       0.000194       33.54100        1.07617        1.00000     0
   55240.012440       0.000188       34.21782        1.09493        1.00000     0
   55240.012805       0.000177       35.91397        1.15240        1.00000     0
   55240.013166       0.000185       34.83356        1.10520        1.00000     0
   55240.013545       0.000194       32.70654        1.04543        1.00000     0
   55240.013916       0.000177       36.50064        1.16668        1.00000     0
   55240.014269       0.000177       36.02780        1.16240        1.00000     0
   55240.014628       0.000182       34.94862        1.12548        1.00000     0
   55240.015050       0.000240       35.44403        0.99321        1.00000     0