/*
**
**  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
   55664.805905       0.000266       25.10419        0.80975        1.00000     0       21.84071        0.68963       21.52607        0.69410        0.31464        0.07866
   55664.806438       0.000266       25.31862        0.81701        1.00000     0       21.92781        0.69100       21.57384        0.69602        0.35397        0.08343
   55664.806956       0.000252       26.21415        0.84683        1.00000     0       23.07289        0.72890       22.71938        0.73393        0.35352        0.08574
   55664.807468       0.000260       26.60013        0.84735        0.97775     0       22.97069        0.72315       22.78565        0.72578        0.18503        0.06168
   55664.808009       0.000281       24.00994        0.77179        0.97939     0       21.06656        0.66652       20.83804        0.66977        0.22853        0.06597
   55664.808553       0.000263       25.06728        0.80515        1.00000     0       22.19079        0.69894       21.89257        0.70317        0.29822        0.07700
   55664.809082       0.000266       24.81676        0.79565        1.00000     0       21.86248        0.68997       21.62650        0.69333        0.23598        0.06812
   55664.809615       0.000266       24.88080        0.80454        1.00000     0       21.77538        0.68860       21.44108        0.69336        0.33430        0.08108
   55664.810133       0.000252       26.66640        0.85048        1.00000     0       23.11895        0.72963       22.95259        0.73199        0.16636        0.05882
   55664.810795       0.000411       25.27803        0.81815        0.63386     0       22.27946        0.70419       21.91766        0.70933        0.36180        0.08528
   55664.811470       0.000263       24.95211        0.80605        1.00000     0       22.16877        0.69860       21.79103        0.70395        0.37774        0.08666
   55664.811988       0.000255       26.20576        0.84682        1.00000     0       22.74240        0.71954       22.41346        0.72422        0.32894        0.08224
   55664.812511       0.000269       24.56262        0.79861        1.00000     0       21.69202        0.68357       21.22514        0.69019        0.46688        0.09530
   55664.813055       0.000275       24.27505        0.78257        1.00000     0       21.21426        0.66885       20.89052        0.67344        0.32375        0.07852
   55664.813579       0.000249       26.78171        0.85353        1.00000     0       23.36448        0.73774       23.21722        0.73984        0.14726        0.05566
   55664.814100       0.000272       24.46455        0.79159        1.00000     0       21.50388        0.67697       21.09970        0.68269        0.40418        0.08820
   55664.814632       0.000260       25.05120        0.81442        1.00000     0       22.25928        0.70390       21.83714        0.70990        0.42214        0.09212
   55664.815413       0.000521       24.74989        0.56840        1.00000     0       21.68054        0.49122       21.47952        0.49327        0.20102        0.04495