/*
**
**  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
   55554.462560       0.000344       18.46617        0.59026        1.00000     0       16.91892        0.53369       16.76595        0.53588        0.15297        0.04837
   55554.463237       0.000333       18.75317        0.60792        1.00000     0       17.43773        0.55115       17.13697        0.55546        0.30075        0.06900
   55554.463897       0.000327       19.44040        0.62546        1.00000     0       17.72863        0.56063       17.51921        0.56363        0.20942        0.05808
   55554.464559       0.000336       18.95919        0.60589        1.00000     0       17.40829        0.54831       17.23567        0.55077        0.17262        0.05205
   55554.465222       0.000327       19.39220        0.62111        1.00000     0       17.83500        0.56231       17.64169        0.56507        0.19331        0.05580
   55554.465870       0.000321       19.76675        0.63418        1.00000     0       18.19245        0.57301       17.96285        0.57628        0.22959        0.06136
   55554.466527       0.000336       18.95714        0.60734        1.00000     0       17.32194        0.54695       17.14932        0.54942        0.17262        0.05205
   55554.467187       0.000324       19.63995        0.63070        1.00000     0       17.90481        0.56592       17.70977        0.56871        0.19504        0.05630
   55554.467852       0.000341       18.65924        0.59176        1.00000     0       17.06230        0.53821       17.00060        0.53910        0.06171        0.03085
   55554.468544       0.000350       18.30685        0.58703        1.00000     0       16.62271        0.52461       16.44218        0.52719        0.18053        0.05211
   55554.469215       0.000321       19.70479        0.63334        1.00000     0       18.08416        0.57130       17.87097        0.57435        0.21319        0.05913
   55554.469863       0.000327       19.54205        0.62913        1.00000     0       17.79954        0.56175       17.55791        0.56520        0.24164        0.06239
   55554.470549       0.000359       17.69694        0.57059        1.00000     0       16.17208        0.51115       15.95188        0.51430        0.22020        0.05686
   55554.471240       0.000333       18.99992        0.60999        1.00000     0       17.48999        0.55198       17.28421        0.55492        0.20578        0.05707
   55554.471897       0.000324       19.57606        0.62659        1.00000     0       17.97635        0.56705       17.79757        0.56960        0.17878        0.05391
   55554.472557       0.000336       18.79617        0.60185        1.00000     0       17.25286        0.54586       17.11163        0.54788        0.14123        0.04708
   55554.473249       0.000356       19.71370        0.60602        1.00000     0       17.99744        0.54141       17.73105        0.54504        0.26639        0.06279