/*
**
**  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
   56403.316880       0.000312       19.92343        0.64125        1.00000     0       18.53080        0.58629       18.31326        0.58939        0.21755        0.06034
   56403.317513       0.000321       19.50805        0.62464        1.00000     0       18.12021        0.57187       17.94111        0.57441        0.17911        0.05400
   56403.318147       0.000312       19.92645        0.63983        1.00000     0       18.66065        0.58834       18.42636        0.59166        0.23428        0.06262
   56403.318783       0.000324       19.06192        0.61510        1.00000     0       17.86899        0.56535       17.62694        0.56879        0.24205        0.06250
   56403.319429       0.000321       19.20190        0.62224        1.00000     0       18.06607        0.57101       17.75670        0.57541        0.30936        0.07097
   56403.320057       0.000307       20.23838        0.65033        1.00000     0       18.93714        0.59825       18.71549        0.60140        0.22165        0.06148
   56403.320748       0.000385       20.07044        0.57775        0.99854     0       18.75030        0.53183       18.55977        0.53426        0.19053        0.05092