/*
**
**  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
   57538.253805       0.000182       34.50193        1.11577        1.00000     0       31.76712        1.00507       31.24605        1.01046        0.52108        0.10422
   57538.254173       0.000185       34.63295        1.10038        1.00000     0       31.33337        0.99035       31.21026        0.99163        0.12310        0.05026
   57538.254537       0.000179       36.05827        1.14985        1.00000     0       32.50568        1.02485       32.23035        1.02769        0.27533        0.07636
   57538.254899       0.000182       34.95801        1.11735        1.00000     0       31.89432        1.00708       31.60252        1.01009        0.29180        0.07799
   57538.255269       0.000188       33.63784        1.08113        1.00000     0       30.78967        0.97414       30.42604        0.97791        0.36363        0.08571
   57538.255631       0.000174       37.38890        1.19153        1.00000     0       33.85631        1.06321       33.48426        1.06704        0.37205        0.09024
   57538.255999       0.000194       33.12859        1.05716        1.00000     0       30.28919        0.95166       29.93641        0.95529        0.35278        0.08315
   57538.256372       0.000179       35.70723        1.14420        1.00000     0       32.79649        1.02942       32.28818        1.03464        0.50830        0.10376
   57538.256731       0.000179       35.48466        1.13154        1.00000     0       32.27950        1.02128       32.08888        1.02325        0.19061        0.06354
   57538.257098       0.000188       33.93420        1.08446        1.00000     0       30.97460        0.97706       30.67157        0.98019        0.30303        0.07824
   57538.257466       0.000179       35.65133        1.13718        1.00000     0       32.53799        1.02536       32.24148        1.02842        0.29651        0.07925
   57538.257830       0.000185       34.67245        1.10507        1.00000     0       31.67769        0.99578       31.34941        0.99916        0.32828        0.08207
   57538.258201       0.000185       34.46872        1.10369        1.00000     0       31.55248        0.99381       31.16265        0.99783        0.38983        0.08943
   57538.258571       0.000185       34.62617        1.10686        1.00000     0       31.70899        0.99627       31.29864        1.00049        0.41035        0.09176
   57538.258941       0.000185       34.19118        1.09931        1.00000     0       31.30206        0.98986       30.91223        0.99389        0.38983        0.08943
   57538.259413       0.000286       34.40084        0.88820        0.99114     0       31.40053        0.80068       31.10612        0.80314        0.29441        0.06277