/*
**
**  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
   57756.153554       0.000246       25.51400        0.81945        1.00000     0
   57756.154046       0.000246       25.72255        0.82163        1.00000     0
   57756.154535       0.000243       25.76696        0.82406        1.00000     0
   57756.155009       0.000231       27.04651        0.86460        1.00000     0
   57756.155469       0.000229       27.54783        0.87756        1.00000     0
   57756.155938       0.000240       26.24952        0.83578        1.00000     0
   57756.156419       0.000240       26.11401        0.83358        1.00000     0
   57756.156905       0.000246       25.38599        0.82088        1.00000     0
   57756.157399       0.000249       25.34773        0.81247        1.00000     0
   57756.157903       0.000255       24.67700        0.78833        1.00000     0
   57756.158406       0.000249       25.50225        0.81206        1.00000     0
   57756.158895       0.000240       26.64279        0.84816        1.00000     0
   57756.159384       0.000249       25.23063        0.81016        1.00000     0
   57756.159873       0.000240       26.16807        0.83784        1.00000     0
   57756.160351       0.000237       27.46329        0.87055        1.00000     0
   57756.160831       0.000243       26.44349        0.84285        1.00000     0
   57756.161323       0.000249       25.62790        0.81324        1.00000     0
   57756.161827       0.000255       24.83009        0.80081        1.00000     0
   57756.162327       0.000246       25.70505        0.82553        1.00000     0
   57756.162805       0.000231       27.23139        0.87906        1.00000     0
   57756.163273       0.000237       27.09891        0.86487        1.00000     0
   57756.163745       0.000234       26.93325        0.86058        1.00000     0
   57756.164283       0.000304       26.29041        0.74739        1.00000     0