/*
**
**  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
   55152.468024       0.000246       62.49751        2.03251        1.00000     0
   55152.468629       0.000359       42.41294        1.40058        1.00000     0
   55152.469569       0.000582       48.87125        1.17764        0.99954     0
   55152.489644       0.000130       48.05298        1.53250        0.99084     0
   55152.489908       0.000133       46.58678        1.48812        1.00000     0
   55152.490168       0.000127       49.30474        1.56908        1.00000     0
   55152.490423       0.000127       48.85092        1.55806        1.00000     0
   55152.490674       0.000124       49.30644        1.58900        1.00000     0
   55152.490935       0.000136       45.54102        1.45312        1.00000     0
   55152.491204       0.000133       46.41339        1.48918        1.00000     0
   55152.491467       0.000130       48.14748        1.52941        1.00000     0
   55152.491731       0.000133       47.27870        1.49643        1.00000     0
   55152.491991       0.000127       48.59723        1.55143        1.00000     0
   55152.492243       0.000124       49.78221        1.58973        1.00000     0
   55152.492500       0.000133       46.78271        1.49371        1.00000     0
   55152.492766       0.000133       46.98931        1.48939        1.00000     0
   55152.493033       0.000133       47.14302        1.49557        1.00000     0
   55152.493296       0.000130       47.52651        1.51969        1.00000     0
   55152.493597       0.000171       47.08060        1.32632        0.99719     0
   55152.535735       0.000156       57.14498        1.82812        0.98607     0
   55152.536085       0.000194       44.70884        1.44799        1.00000     0
   55152.536464       0.000185       46.76131        1.51648        1.00000     0
   55152.536826       0.000177       49.15182        1.58977        1.00000     0
   55152.537167       0.000165       53.54332        1.71028        1.00000     0
   55152.537503       0.000171       51.34352        1.65468        1.00000     0
   55152.537833       0.000159       54.77558        1.76278        1.00000     0
   55152.538160       0.000168       51.88031        1.66776        1.00000     0
   55152.538487       0.000159       54.40813        1.76304        1.00000     0
   55152.538802       0.000156       55.48233        1.79981        1.00000     0
   55152.539118       0.000159       54.41819        1.76622        1.00000     0
   55152.539439       0.000162       53.63925        1.73030        1.00000     0
   55152.539760       0.000159       55.60612        1.77578        1.00000     0
   55152.540078       0.000159       55.19840        1.76338        1.00000     0
   55152.540405       0.000168       51.93759        1.67009        1.00000     0
   55152.540729       0.000156       55.94375        1.79323        1.00000     0
   55152.541045       0.000159       55.22860        1.77288        1.00000     0
   55152.541427       0.000223       56.23604        1.51034        1.00000     0