/*
**
**  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
   54422.431333       0.000260       28.01749        0.89764        1.00000     0       22.28130        0.70424       22.07825        0.70717        0.20305        0.06421
   54422.431834       0.000240       28.85599        0.92603        1.00000     0       24.13631        0.76326       23.89412        0.76674        0.24219        0.07302
   54422.432302       0.000229       30.27245        0.97674        1.00000     0       25.73878        0.80789       25.25300        0.81482        0.48578        0.10601
   54422.432762       0.000231       29.67254        0.96242        1.00000     0       25.04142        0.79188       24.60740        0.79811        0.43402        0.09957
   54422.433312       0.000318       30.21895        0.82507        0.99645     0       25.33179        0.68043       25.04836        0.68390        0.28343        0.06874
   54422.482279       0.000200       31.86948        1.02070        0.98852     0       29.45872        0.93017       29.17008        0.93423        0.28864        0.08703
   54422.482676       0.000197       33.15094        1.04986        1.00000     0       29.75510        0.93627       29.62350        0.93812        0.13160        0.05885
   54422.483110       0.000237       31.11984        0.92758        0.99057     0       28.46137        0.83782       28.21900        0.84101        0.24238        0.07308
   54422.499739       0.000200       32.78186        1.05553        0.98551     0       29.54866        0.93301       29.15093        0.93865        0.39772        0.10269
   54422.500228       0.000289       32.52535        0.87864        0.99013     0       28.91263        0.76484       28.49380        0.76981        0.41883        0.08733