/*
**
**  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
   57835.136807       0.000295       21.56358        0.69956        0.99020     0       19.99369        0.62974       19.58826        0.63539        0.40543        0.08454
   57835.137386       0.000284       22.30260        0.71716        1.00000     0       20.44220        0.64644       20.20603        0.64975        0.23617        0.06550
   57835.137962       0.000292       21.74632        0.69516        1.00000     0       20.01352        0.63005       19.80199        0.63301        0.21153        0.06106
   57835.138549       0.000295       21.56457        0.69111        1.00000     0       19.91551        0.62542       19.63624        0.62931        0.27927        0.06982
   57835.139134       0.000289       21.69562        0.70197        1.00000     0       20.09346        0.63446       19.75519        0.63919        0.33827        0.07760
   57835.139695       0.000272       23.53034        0.75489        0.98936     0       21.69203        0.68357       21.42402        0.68732        0.26801        0.07163
   57835.140250       0.000284       22.24489        0.71622        1.00000     0       20.54441        0.64805       20.25374        0.65211        0.29067        0.07267
   57835.140826       0.000292       21.79489        0.69456        1.00000     0       19.83501        0.62724       19.72924        0.62872        0.10576        0.04318
   57835.141416       0.000298       21.16063        0.68079        1.00000     0       19.52766        0.61629       19.26838        0.61991        0.25928        0.06694
   57835.142004       0.000289       21.91445        0.69963        1.00000     0       20.11349        0.63478       19.95326        0.63702        0.16023        0.05341
   57835.142574       0.000281       22.39934        0.72121        1.00000     0       20.65295        0.65310       20.39599        0.65670        0.25696        0.06868
   57835.143132       0.000278       22.98660        0.73126        1.00000     0       21.09763        0.66353       20.93072        0.66585        0.16691        0.05564
   57835.143673       0.000263       23.85238        0.76839        1.00000     0       21.99266        0.69582       21.71876        0.69966        0.27390        0.07320
   57835.144215       0.000278       22.79639        0.72646        1.00000     0       20.86808        0.65991       20.75681        0.66147        0.11127        0.04543
   57835.144761       0.000269       23.34485        0.75320        1.00000     0       21.56279        0.68153       21.25649        0.68582        0.30630        0.07657
   57835.145326       0.000295       21.36661        0.68689        1.00000     0       19.69947        0.62202       19.45510        0.62544        0.24436        0.06531
   57835.145913       0.000292       21.69509        0.69725        1.00000     0       20.05319        0.63068       19.75353        0.63485        0.29967        0.07268
   57835.146498       0.000292       21.67442        0.69232        1.00000     0       19.89451        0.62818       19.73587        0.63040        0.15865        0.05288
   57835.147345       0.000556       22.50632        0.51367        1.00000     0       20.74287        0.46522       20.49251        0.46771        0.25036        0.04818