/*
**
**  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
   55590.338841       0.000373        5.29779        0.39244        0.94574     0        3.28412        0.23222        3.19491        0.23304        0.08921        0.01947
   55590.339501       0.000286        6.20974        0.44722        0.97980     0        4.15124        0.29281        4.07643        0.29349        0.07481        0.01999
   55590.340117       0.000330        5.85928        0.42543        0.95614     0        3.67584        0.25992        3.59025        0.26070        0.08559        0.02017
   55590.340777       0.000330        5.74748        0.41256        0.99123     0        3.54572        0.25072        3.49986        0.25114        0.04587        0.01450
   55590.341428       0.000315        5.67575        0.41468        0.99083     0        3.70988        0.26233        3.60430        0.26329        0.10558        0.02251
   55590.342064       0.000321        5.74620        0.41205        0.99099     0        3.66064        0.25820        3.60881        0.25867        0.05183        0.01563
   55590.342715       0.000330        5.89375        0.42435        0.98246     0        3.59527        0.25359        3.53048        0.25418        0.06479        0.01732
   55590.343349       0.000304        6.27676        0.45240        0.97143     0        3.92811        0.27776        3.86205        0.27836        0.06606        0.01832
   55590.343997       0.000344        5.52210        0.39879        0.97479     0        3.47129        0.24485        3.39980        0.24550        0.07149        0.01787
   55590.344680       0.000339        5.59688        0.40044        0.98291     0        3.48406        0.24636        3.44800        0.24669        0.03606        0.01275
   55590.345406       0.000388        4.99769        0.36246        0.97015     0        3.08205        0.21793        3.01427        0.21855        0.06778        0.01644
   55590.346133       0.000339        5.71205        0.41568        0.98291     0        3.48406        0.24636        3.39843        0.24714        0.08563        0.01965
   55590.346839       0.000367        5.60805        0.40076        0.97176     0        3.37641        0.23411        3.28822        0.23490        0.08819        0.01925