/*
**
**  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
   54943.064737       0.000203       31.31128        0.99547        1.00000     0
   54943.065148       0.000208       30.22068        0.96076        1.00000     0
   54943.065562       0.000205       30.88752        0.98232        1.00000     0
   54943.065964       0.000197       32.01330        1.02132        1.00000     0
   54943.066366       0.000205       30.74840        0.97605        1.00000     0
   54943.066768       0.000197       32.11203        1.02113        1.00000     0
   54943.067168       0.000203       31.16711        0.98810        1.00000     0
   54943.067578       0.000208       30.19648        0.96554        1.00000     0
   54943.067984       0.000197       31.76859        1.01450        1.00000     0
   54943.068389       0.000208       30.00890        0.96081        1.00000     0
   54943.068805       0.000208       30.17472        0.96365        1.00000     0
   54943.069216       0.000203       31.15658        0.99125        1.00000     0
   54943.069789       0.000370       31.07684        0.73482        0.99283     0
   54943.134210       0.000197       31.65385        1.01519        0.99977     0
   54943.134607       0.000200       31.60752        1.01119        1.00000     0
   54943.135018       0.000211       29.98525        0.96227        1.00000     0
   54943.135446       0.000217       29.22061        0.93157        1.00000     0
   54943.135874       0.000211       30.49687        0.96463        1.00000     0
   54943.136436       0.000350       29.98907        0.74102        0.99990     0