/*
**
**  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
   55854.710162       0.000298        4.91137        0.35045        1.00000     0
   55854.710729       0.000269        5.49622        0.39270        0.98925     0
   55854.711279       0.000281        5.19926        0.37307        0.95876     0
   55854.711805       0.000246        5.83796        0.41705        0.97647     0
   55854.712338       0.000286        5.14521        0.36478        0.96970     0
   55854.712893       0.000269        5.30266        0.37896        0.98925     0
   55854.713434       0.000272        5.14978        0.37006        1.00000     0
   55854.713999       0.000292        4.87368        0.35126        0.98020     0
   55854.714557       0.000266        5.26911        0.37933        1.00000     0
   55854.715110       0.000286        5.05398        0.36145        0.97980     0
   55854.715677       0.000281        5.10044        0.36543        0.97938     0
   55854.716270       0.000312        4.61439        0.33110        0.97222     0
   55854.716883       0.000301        4.71591        0.33851        0.99038     0
   55854.717453       0.000269        5.21915        0.37782        0.98925     0
   55854.718006       0.000284        4.91096        0.35499        1.00000     0
   55854.718573       0.000284        5.19207        0.36811        0.96939     0
   55854.719155       0.000298        4.78701        0.34223        0.99029     0
   55854.719751       0.000298        4.72981        0.33851        1.00000     0
   55854.720289       0.000240        6.01904        0.43298        0.97590     0
   55854.721007       0.000477        4.95717        0.27635        0.98788     0