/*
**
**  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
   59738.254729       0.000171       37.68204        1.20417        1.00000     0       34.56586        1.08336       34.10609        1.08985        0.45977        0.11871
   59738.255073       0.000174       36.40448        1.17080        1.00000     0       33.65587        1.06006       33.17363        1.06689        0.48225        0.12056
   59738.255426       0.000179       35.12197        1.13162        1.00000     0       32.53789        1.02536       32.04203        1.03238        0.49586        0.12026
   59738.255776       0.000171       37.02235        1.19038        1.00000     0       34.32817        1.07963       33.80710        1.08700        0.52107        0.12638
   59738.256115       0.000168       37.70905        1.20897        1.00000     0       34.85096        1.09716       34.41444        1.10334        0.43652        0.11666
   59738.256447       0.000165       38.67558        1.23489        1.00000     0       35.74355        1.12082       35.29937        1.12709        0.44417        0.11871
   59738.256783       0.000171       36.88826        1.18665        1.00000     0       34.12444        1.07642       33.66468        1.08295        0.45977        0.11871
   59738.257116       0.000162       38.68555        1.24868        1.00000     0       35.80944        1.13183       35.29276        1.13918        0.51669        0.12917
   59738.257446       0.000168       38.57300        1.22978        0.99197     0       35.69028        1.11478       35.18737        1.12184        0.50292        0.12573