/*
**
**  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
   54858.509735       0.000191       33.77816        1.09336        1.00000     0
   54858.510123       0.000197       32.42320        1.04207        1.00000     0
   54858.510507       0.000188       34.71830        1.10832        1.00000     0
   54858.510884       0.000188       34.42695        1.09609        1.00000     0
   54858.511280       0.000208       30.89822        0.98918        1.00000     0
   54858.511673       0.000185       34.76555        1.11390        1.00000     0
   54858.512053       0.000194       33.28691        1.05966        1.00000     0
   54858.512446       0.000200       32.24456        1.03144        1.00000     0
   54858.512845       0.000200       32.30999        1.03417        1.00000     0
   54858.513239       0.000194       32.98146        1.06230        1.00000     0
   54858.513638       0.000205       31.25456        0.99914        1.00000     0
   54858.514043       0.000200       32.15121        1.03088        1.00000     0
   54858.514434       0.000191       33.70630        1.07819        1.00000     0
   54858.514798       0.000174       36.84563        1.17931        1.00000     0
   54858.515169       0.000197       32.36366        1.04285        1.00000     0
   54858.515681       0.000315       32.64862        0.82992        0.99200     0
   54858.577842       0.000243       32.03532        1.02939        0.99067     0
   54858.578311       0.000226       34.19930        1.09636        1.00000     0
   54858.578748       0.000211       33.49923        1.07539        1.00000     0
   54858.579173       0.000214       32.61177        1.04729        1.00000     0
   54858.579610       0.000223       31.45248        1.00934        1.00000     0
   54858.580042       0.000208       33.62802        1.08167        1.00000     0
   54858.580461       0.000211       32.77269        1.06803        1.00000     0
   54858.580895       0.000223       31.37278        1.00715        1.00000     0
   54858.581526       0.000408       33.82547        0.77185        1.00000     0