/*
**
**  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
   59699.262650       0.000252       11.23537        0.83555        0.98851     0        4.68219        0.33026        4.54323        0.33153        0.13896        0.02898
   59699.263151       0.000249       10.78910        0.78217        0.97674     0        4.81752        0.33896        4.70000        0.34003        0.11753        0.02696
   59699.263718       0.000318       10.93404        0.80278        0.93636     0        3.92886        0.27643        3.78760        0.27772        0.14125        0.02669
   59699.264317       0.000281       11.86347        0.87059        0.97938     0        4.21753        0.29822        4.08079        0.29948        0.13674        0.02735
   59699.264916       0.000318       10.56846        0.78205        0.97273     0        3.74454        0.26478        3.59885        0.26611        0.14568        0.02660
   59699.265602       0.000367       10.47655        0.73703        0.94475     0        3.79017        0.25156        3.59963        0.25320        0.19055        0.02873