/*
**
**  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
   57076.284560       0.000266       25.08357        0.80435        1.00000     0       22.01485        0.69237       21.72034        0.69654        0.29450        0.07604
   57076.285084       0.000258       26.00384        0.83298        1.00000     0       22.57685        0.71287       22.35360        0.71604        0.22325        0.06731
   57076.285602       0.000260       25.69075        0.82084        1.00000     0       22.43729        0.70671       22.21652        0.70984        0.22077        0.06656
   57076.286137       0.000275       24.13110        0.77785        1.00000     0       21.10877        0.66718       20.82356        0.67124        0.28520        0.07364
   57076.286693       0.000281       23.55112        0.76257        1.00000     0       20.75615        0.65473       20.38371        0.66001        0.37243        0.08328
   57076.287243       0.000269       24.64125        0.79369        1.00000     0       21.64888        0.68289       21.33812        0.68730        0.31076        0.07769
   57076.287781       0.000269       24.77722        0.79453        1.00000     0       21.67042        0.68323       21.41793        0.68681        0.25249        0.07003
   57076.288371       0.000321       23.61049        0.71508        0.99390     0       20.77359        0.61418       20.42976        0.61875        0.34383        0.07503