/*
**
**  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
   55945.128436       0.000165       18.48931        1.35370        1.00000     0        7.16983        0.50199        6.93294        0.50627        0.23688        0.06570
   55945.129087       0.000486       20.85762        0.68789        1.00000     0       11.91268        0.37690       11.55507        0.38016        0.35761        0.04971
   55945.130033       0.000460       22.83068        0.75046        1.00000     0       12.63739        0.39903       12.30232        0.40385        0.33506        0.06222
   55945.130947       0.000454       22.53386        0.73047        1.00000     0       12.77285        0.40371       12.55053        0.40692        0.22232        0.05100
   55945.131856       0.000454       23.12693        0.74930        1.00000     0       12.79837        0.40411       12.57605        0.40732        0.22232        0.05100
   55945.132773       0.000463       22.16991        0.71774        1.00000     0       12.60849        0.39733       12.37885        0.40063        0.22963        0.05135
   55945.133690       0.000454       21.77518        0.72270        1.00000     0       12.79837        0.40411       12.36543        0.41033        0.43294        0.07117
   55945.134590       0.000446       22.41243        0.73276        1.00000     0       12.99566        0.41116       12.70936        0.41530        0.28630        0.05844
   55945.135481       0.000446       22.29436        0.72792        1.00000     0       13.11273        0.41301       12.79065        0.41764        0.32208        0.06198
   55945.136720       0.000793       21.50794        0.53267        0.99635     0       12.64376        0.30460       12.40823        0.30719        0.23552        0.03981