/*
**
**  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)
**   RawRate                  - Raw source count rate (cts/s)
**   RawError                 - 1 sigma error in the raw count rate (cts/s)
**   NetRate                  - Background subtracted count rate (cts/s)
**   NetError                 - 1 sigma error in the background subtracted count rate (cts/s)
**   BackRate                 - Background count rate (cts/s)
**   BackError                - 1 sigma error in the background count rate (cts/s)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode        RawRate       RawError        NetRate       NetError       BackRate      BackError
   57515.918104       0.000286       22.46538        0.72308        1.00000     0       20.35713        0.64183       20.06892        0.64586        0.28821        0.07205
   57515.918686       0.000295       21.67501        0.70173        1.00000     0       19.67983        0.62171       19.34764        0.62636        0.33219        0.07621
   57515.919273       0.000292       21.79228        0.70387        1.00000     0       19.81517        0.62692       19.53267        0.63089        0.28251        0.07063
   57515.919852       0.000286       22.75001        0.72304        1.00000     0       20.39760        0.64246       20.27151        0.64423        0.12609        0.04766
   57515.920451       0.000312       20.53577        0.66367        1.00000     0       18.60505        0.58746       18.30783        0.59163        0.29722        0.07006
   57515.921055       0.000292       21.99745        0.70832        1.00000     0       19.83501        0.62724       19.58781        0.63071        0.24719        0.06606
   57515.921660       0.000312       20.58173        0.66138        1.00000     0       18.53086        0.58629       18.33271        0.58907        0.19815        0.05720
   57515.922262       0.000289       22.16098        0.71264        1.00000     0       20.13352        0.63509       19.86603        0.63884        0.26750        0.06907
   57515.922867       0.000315       20.36991        0.65621        1.00000     0       18.54464        0.58381       18.25015        0.58792        0.29449        0.06941
   57515.923477       0.000295       22.03254        0.70758        1.00000     0       19.73875        0.62264       19.49398        0.62607        0.24477        0.06542
   57515.924079       0.000307       20.86189        0.67500        1.00000     0       19.05059        0.60004       18.69729        0.60497        0.35330        0.07710
   57515.924695       0.000310       20.99776        0.67125        1.00000     0       18.89127        0.59472       18.69127        0.59752        0.20000        0.05773
   57515.925286       0.000281       23.31609        0.74888        1.00000     0       20.75621        0.65473       20.49883        0.65834        0.25739        0.06879
   57515.925870       0.000304       21.05714        0.67820        1.00000     0       19.11755        0.60395       18.86279        0.60752        0.25476        0.06578
   57515.926478       0.000304       21.07653        0.68455        1.00000     0       19.13663        0.60425       18.76298        0.60948        0.37365        0.07966
   57515.927074       0.000292       22.43925        0.71369        1.00000     0       20.01352        0.63005       19.87227        0.63203        0.14125        0.04994
   57515.927658       0.000292       22.54671        0.72010        1.00000     0       19.95402        0.62912       19.77745        0.63159        0.17657        0.05584
   57515.928246       0.000295       21.89831        0.70879        1.00000     0       19.64054        0.62109       19.32584        0.62550        0.31470        0.07418
   57515.929082       0.000541       22.00797        0.52647        1.00000     0       19.77624        0.46029       19.40432        0.46412        0.37192        0.05956