/*
**
**  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
   55275.016852       0.000240       26.67971        0.86185        1.00000     0
   55275.017335       0.000243       26.68246        0.85359        1.00000     0
   55275.017821       0.000243       26.23582        0.84396        1.00000     0
   55275.018304       0.000240       26.70886        0.85352        1.00000     0
   55275.018790       0.000246       26.10300        0.83611        1.00000     0
   55275.019274       0.000237       26.76616        0.86395        1.00000     0
   55275.019751       0.000240       26.62176        0.85471        1.00000     0
   55275.020237       0.000246       26.24777        0.84550        1.00000     0
   55275.020738       0.000255       24.96016        0.80328        1.00000     0
   55275.021244       0.000252       25.22915        0.81499        1.00000     0
   55275.021736       0.000240       26.88854        0.85997        1.00000     0
   55275.022216       0.000240       26.79112        0.85759        1.00000     0
   55275.022702       0.000246       25.99586        0.83336        1.00000     0
   55275.023194       0.000246       26.31302        0.84135        1.00000     0
   55275.023680       0.000240       26.46265        0.84956        1.00000     0
   55275.024175       0.000255       24.71931        0.80619        1.00000     0
   55275.024684       0.000255       27.14520        0.83713        0.99934     0