/*
**
**  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
   57749.498475       0.000269       23.34614        0.74948        1.00000     0       21.58431        0.68187       21.34784        0.68528        0.23647        0.06826
   57749.499004       0.000260       24.15267        0.78507        1.00000     0       22.23701        0.70355       21.82976        0.70942        0.40726        0.09106
   57749.499543       0.000278       22.78930        0.73536        1.00000     0       20.93067        0.66090       20.62523        0.66529        0.30544        0.07636
   57749.500115       0.000295       21.07343        0.68451        1.00000     0       19.73874        0.62264       19.34346        0.62832        0.39528        0.08427
   57749.500685       0.000275       22.91002        0.73137        1.00000     0       21.19317        0.66852       21.01955        0.67102        0.17362        0.05787
   57749.501247       0.000286       21.99368        0.70670        1.00000     0       20.29641        0.64087       20.05576        0.64433        0.24065        0.06674
   57749.501805       0.000272       23.09304        0.74138        1.00000     0       21.46125        0.67630       21.18830        0.68022        0.27295        0.07295
   57749.502358       0.000281       22.31225        0.71876        1.00000     0       20.71489        0.65408       20.43149        0.65816        0.28340        0.07317
   57749.502911       0.000272       23.12038        0.74346        1.00000     0       21.39732        0.67529       21.12437        0.67922        0.27295        0.07295
   57749.503469       0.000286       21.89861        0.70740        1.00000     0       20.29641        0.64087       19.98171        0.64540        0.31470        0.07633
   57749.504051       0.000295       21.19728        0.68577        1.00000     0       19.64053        0.62109       19.33509        0.62549        0.30544        0.07408
   57749.504632       0.000286       21.70895        0.70286        1.00000     0       20.25594        0.64023       19.92273        0.64503        0.33321        0.07854
   57749.505199       0.000281       22.39243        0.71557        1.00000     0       20.71489        0.65408       20.54485        0.65653        0.17004        0.05668
   57749.505761       0.000281       22.17704        0.71647        1.00000     0       20.65293        0.65310       20.35064        0.65746        0.30229        0.07557
   57749.506305       0.000263       24.03804        0.76418        1.00000     0       22.19078        0.69894       22.04981        0.70097        0.14097        0.05328
   57749.506863       0.000295       21.15409        0.68011        1.00000     0       19.62089        0.62078       19.40529        0.62389        0.21561        0.06224
   57749.507433       0.000275       22.72199        0.73112        1.00000     0       21.08773        0.66685       20.83695        0.67047        0.25078        0.06955
   57749.508018       0.000310       22.50190        0.68831        1.00000     0       20.98820        0.62686       20.64565        0.63153        0.34255        0.07660