/*
**
**  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
   55629.274489       0.000153       17.15736        1.25396        1.00000     0
   55629.275071       0.000428       18.71675        0.60317        1.00000     0
   55629.275962       0.000463       18.71017        0.60764        1.00000     0
   55629.276880       0.000454       19.07218        0.61729        1.00000     0
   55629.277771       0.000437       19.47499        0.63437        1.00000     0
   55629.278656       0.000448       18.20275        0.59971        1.00000     0
   55629.279565       0.000460       18.81067        0.60458        1.00000     0
   55629.280476       0.000451       18.79857        0.60918        1.00000     0
   55629.281347       0.000420       20.02175        0.64533        1.00000     0
   55629.282201       0.000434       19.25060        0.62779        1.00000     0
   55629.283057       0.000422       19.78462        0.63997        1.00000     0
   55629.283919       0.000440       18.98930        0.61556        1.00000     0
   55629.284782       0.000422       19.54799        0.64004        1.00000     0
   55629.285627       0.000422       19.52540        0.63619        1.00000     0
   55629.286480       0.000431       19.39775        0.62957        1.00000     0
   55629.287533       0.000622       20.04646        0.53259        1.00000     0