/*
**
**  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
   55651.276360       0.000119       10.89709        0.78190        1.00000     0        9.82123        0.69274        9.68535        0.69495        0.13588        0.05547
   55651.277037       0.000558       12.08416        0.38906        0.95852     0       10.83999        0.34262       10.67938        0.34379        0.16061        0.02839
   55651.278128       0.000532       12.30043        0.39269        1.00000     0       10.94213        0.34516       10.83616        0.34593        0.10597        0.02312
   55651.279213       0.000553       11.63814        0.37375        1.00000     0       10.47818        0.33151       10.35178        0.33244        0.12639        0.02479
   55651.280130       0.000365       11.20114        0.45110        1.00000     0        9.98488        0.39844        9.91119        0.39912        0.07369        0.02330
   55651.281030       0.000535       12.09829        0.38756        1.00000     0       10.88298        0.34329       10.74747        0.34428        0.13551        0.02608
   55651.282129       0.000564       11.57147        0.37276        1.00000     0       10.29406        0.32520       10.13217        0.32638        0.16189        0.02776
   55651.283252       0.000558       11.78357        0.37575        1.00000     0       10.43188        0.32906       10.34047        0.32973        0.09141        0.02097
   55651.284357       0.000547       12.06336        0.38639        1.00000     0       10.63146        0.33569       10.50864        0.33659        0.12282        0.02456
   55651.285833       0.000929       12.11546        0.29683        1.00000     0       10.71566        0.25860       10.58550        0.25933        0.13016        0.01940