/*
**
**  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
   54538.242010       0.000162       39.78267        1.26957        1.00000     0
   54538.242331       0.000159       40.48838        1.28876        1.00000     0
   54538.242647       0.000156       41.33317        1.32607        1.00000     0
   54538.242962       0.000159       40.91656        1.31288        1.00000     0
   54538.243277       0.000156       41.16271        1.31634        1.00000     0
   54538.243581       0.000148       44.20894        1.41665        1.00000     0
   54538.243882       0.000153       43.19527        1.37918        1.00000     0
   54538.244192       0.000156       42.58648        1.35212        1.00000     0
   54538.244507       0.000159       41.05089        1.31083        1.00000     0
   54538.244823       0.000156       42.37201        1.34384        1.00000     0
   54538.245132       0.000153       42.16440        1.35859        1.00000     0
   54538.245445       0.000159       40.77118        1.29512        1.00000     0
   54538.245766       0.000162       40.70516        1.28943        1.00000     0
   54538.246075       0.000148       43.84329        1.39561        1.00000     0
   54538.246382       0.000159       40.99366        1.29798        1.00000     0
   54538.246695       0.000153       42.07116        1.35712        1.00000     0
   54538.247042       0.000194       41.49285        1.19096        0.99233     0
   54538.307933       0.000153       40.77184        1.29880        0.99562     0
   54538.308249       0.000162       38.26402        1.22736        1.00000     0
   54538.308570       0.000159       39.33428        1.25107        1.00000     0
   54538.308888       0.000159       39.93719        1.26827        1.00000     0
   54538.309203       0.000156       40.34007        1.27803        1.00000     0
   54538.309522       0.000162       38.70670        1.23044        1.00000     0
   54538.309837       0.000153       40.71241        1.29560        1.00000     0
   54538.310144       0.000153       40.32796        1.29115        1.00000     0
   54538.310462       0.000165       37.69316        1.20138        1.00000     0
   54538.310783       0.000156       39.55198        1.26756        1.00000     0
   54538.311099       0.000159       39.67014        1.25305        1.00000     0
   54538.311423       0.000165       37.89362        1.20528        1.00000     0
   54538.311744       0.000156       39.62106        1.26786        1.00000     0
   54538.312065       0.000165       38.20430        1.22271        1.00000     0
   54538.312386       0.000156       41.06950        1.31131        1.00000     0
   54538.312710       0.000168       37.46794        1.19161        1.00000     0
   54538.313043       0.000165       37.63848        1.20200        1.00000     0
   54538.313367       0.000159       39.46759        1.25218        1.00000     0
   54538.313683       0.000156       40.34468        1.28233        1.00000     0
   54538.314007       0.000168       37.03690        1.18466        1.00000     0
   54538.314354       0.000179       39.24300        1.18337        1.00000     0