/*
**
**  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)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode
   57178.886514       0.000148       43.36436        1.37977        1.00000     0
   57178.886814       0.000153       40.87173        1.30618        1.00000     0
   57178.887127       0.000159       39.11435        1.25048        1.00000     0
   57178.887439       0.000153       41.14064        1.30520        1.00000     0
   57178.887746       0.000153       40.19667        1.28951        1.00000     0
   57178.888056       0.000156       39.60173        1.26707        1.00000     0
   57178.888371       0.000159       39.04697        1.24750        1.00000     0
   57178.888689       0.000159       39.59380        1.25603        1.00000     0
   57178.889005       0.000156       40.20827        1.27746        1.00000     0
   57178.889355       0.000194       41.30880        1.17283        0.98630     0