/*
**
**  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
   59936.253262       0.000231       27.18800        0.87038        1.00000     0       25.26705        0.79544       24.95392        0.79886        0.31313        0.07381
   59936.253736       0.000243       26.30330        0.83623        1.00000     0       24.08771        0.75794       23.90546        0.75993        0.18224        0.05495
   59936.254216       0.000237       27.07693        0.85735        1.00000     0       24.60192        0.77527       24.51706        0.77620        0.08486        0.03795
   59936.254671       0.000217       29.27011        0.93452        1.00000     0       26.89810        0.84763       26.63832        0.85047        0.25978        0.06943
   59936.255116       0.000229       27.99683        0.88987        1.00000     0       25.71368        0.80751       25.48467        0.81000        0.22901        0.06352
   59936.255565       0.000220       29.20071        0.92917        1.00000     0       26.62325        0.83772       26.40351        0.84012        0.21974        0.06343
   59936.256025       0.000240       26.47530        0.84229        1.00000     0       24.47447        0.76859       24.23973        0.77115        0.23474        0.06274
   59936.256497       0.000231       27.34026        0.87682        1.00000     0       25.09176        0.79268       24.81342        0.79573        0.27834        0.06958
   59936.256965       0.000237       26.86837        0.85958        1.00000     0       24.55306        0.77450       24.29848        0.77729        0.25458        0.06573
   59936.257440       0.000237       26.91320        0.85978        1.00000     0       24.62635        0.77566       24.37177        0.77844        0.25458        0.06573
   59936.257912       0.000234       26.92476        0.86185        1.00000     0       24.78198        0.78289       24.54145        0.78553        0.24054        0.06429
   59936.258374       0.000229       27.84417        0.88812        1.00000     0       25.53617        0.80471       25.30716        0.80722        0.22901        0.06352
   59936.258826       0.000223       28.85220        0.92550        1.00000     0       26.19945        0.82561       25.85604        0.82936        0.34340        0.07878
   59936.259286       0.000237       27.01966        0.86338        1.00000     0       24.69964        0.77681       24.41112        0.77996        0.28852        0.06998
   59936.259746       0.000223       28.81618        0.91533        1.00000     0       26.17343        0.82520       26.02884        0.82679        0.14459        0.05112
   59936.260203       0.000234       27.31621        0.87129        1.00000     0       24.90565        0.78484       24.68229        0.78728        0.22336        0.06195
   59936.260652       0.000214       29.62387        0.94463        1.00000     0       27.18037        0.85780       26.97350        0.86007        0.20687        0.06237
   59936.261106       0.000240       26.64758        0.85386        1.00000     0       24.18483        0.76403       23.93332        0.76678        0.25151        0.06494
   59936.261566       0.000220       29.41269        0.94089        1.00000     0       26.49146        0.83565       26.21678        0.83865        0.27468        0.07092
   59936.262145       0.000359       28.68537        0.72407        1.00000     0       25.89794        0.64684       25.69592        0.64859        0.20202        0.04762