/*
**
**  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
   56772.930793       0.000229       27.86568        0.88545        1.00000     0
   56772.931256       0.000234       26.63995        0.85196        1.00000     0
   56772.931719       0.000229       27.51306        0.87869        1.00000     0
   56772.932174       0.000226       27.71248        0.88690        1.00000     0
   56772.932622       0.000223       28.13107        0.89776        1.00000     0
   56772.933071       0.000226       27.82261        0.88503        1.00000     0
   56772.933528       0.000231       27.07801        0.86415        1.00000     0
   56772.933988       0.000229       27.50592        0.87489        1.00000     0
   56772.934451       0.000234       27.05023        0.86151        1.00000     0
   56772.934922       0.000237       26.60037        0.84562        1.00000     0
   56772.935394       0.000234       26.85663        0.85714        1.00000     0
   56772.935854       0.000226       28.06082        0.89121        1.00000     0
   56772.936317       0.000237       26.65988        0.84542        1.00000     0
   56772.936783       0.000229       27.76671        0.88320        1.00000     0
   56772.937234       0.000223       28.31739        0.90216        1.00000     0
   56772.937680       0.000223       28.34365        0.89849        1.00000     0
   56772.938120       0.000217       29.23413        0.92566        1.00000     0
   56772.938568       0.000231       26.88906        0.86120        1.00000     0
   56772.939043       0.000243       25.93564        0.82742        1.00000     0
   56772.939517       0.000231       27.21161        0.86784        1.00000     0
   56772.939980       0.000231       27.00821        0.86206        1.00000     0
   56772.940423       0.000211       29.55354        0.94124        1.00000     0
   56772.940857       0.000223       28.34894        0.90434        1.00000     0
   56772.941303       0.000223       28.20556        0.89637        1.00000     0
   56772.941942       0.000417       27.61032        0.65018        1.00000     0