/*
**
**  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
   55976.323319       0.000217        7.10754        0.50879        1.00000     0
   55976.323773       0.000237        6.22800        0.44893        0.97561     0
   55976.324282       0.000272        5.28920        0.37672        1.00000     0
   55976.324765       0.000211        6.92605        0.49240        1.00000     0
   55976.325202       0.000226        6.34572        0.45608        1.00000     0
   55976.325674       0.000246        6.04059        0.42992        0.97647     0
   55976.326125       0.000205        7.06482        0.50834        0.98592     0
   55976.326556       0.000226        6.54381        0.46456        0.98718     0
   55976.327037       0.000255        5.84520        0.41556        0.97727     0
   55976.327506       0.000214        7.02699        0.50349        0.97297     0
   55976.327948       0.000229        6.48690        0.46354        0.97468     0
   55976.328411       0.000234        6.30654        0.44692        0.98765     0
   55976.328865       0.000220        6.66538        0.47289        1.00000     0
   55976.329311       0.000226        6.80690        0.47878        0.97436     0
   55976.329783       0.000246        5.91514        0.42788        0.98824     0
   55976.330251       0.000223        6.57953        0.46812        0.98701     0
   55976.330717       0.000243        6.03738        0.43315        0.97619     0
   55976.331198       0.000237        6.28066        0.45023        0.97561     0
   55976.331661       0.000226        6.34459        0.45519        1.00000     0
   55976.332155       0.000269        5.35591        0.38593        0.98925     0
   55976.332653       0.000229        6.26392        0.44874        1.00000     0
   55976.333122       0.000240        6.12364        0.43426        1.00000     0
   55976.333599       0.000237        6.28764        0.44341        1.00000     0
   55976.334062       0.000226        6.45187        0.45721        1.00000     0
   55976.334499       0.000211        6.80315        0.48753        1.00000     0
   55976.335063       0.000353        6.55536        0.37258        0.98361     0