/*
**
**  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
   55854.710162       0.000298        4.91137        0.35045        1.00000     0        3.94832        0.27712        3.89313        0.27762        0.05519        0.01664
   55854.710729       0.000269        5.49622        0.39270        0.98925     0        4.35508        0.30795        4.31575        0.30831        0.03932        0.01486
   55854.711279       0.000281        5.19926        0.37307        0.95876     0        4.30825        0.30464        4.25268        0.30515        0.05557        0.01757
   55854.711805       0.000246        5.83796        0.41705        0.97647     0        4.82731        0.34134        4.78373        0.34174        0.04359        0.01647
   55854.712338       0.000286        5.14521        0.36478        0.96970     0        4.23622        0.29732        4.19854        0.29767        0.03768        0.01424
   55854.712893       0.000269        5.30266        0.37896        0.98925     0        4.37685        0.30872        4.32630        0.30918        0.05056        0.01685
   55854.713434       0.000272        5.14978        0.37006        1.00000     0        4.26242        0.30140        4.20194        0.30195        0.06048        0.01823
   55854.713999       0.000292        4.87368        0.35126        0.98020     0        4.04714        0.28618        3.97928        0.28679        0.06786        0.01882
   55854.714557       0.000266        5.26911        0.37933        1.00000     0        4.37685        0.30872        4.29821        0.30943        0.07864        0.02102
   55854.715110       0.000286        5.05398        0.36145        0.97980     0        4.19255        0.29426        4.12328        0.29489        0.06926        0.01921
   55854.715677       0.000281        5.10044        0.36543        0.97938     0        4.21755        0.29823        4.16859        0.29867        0.04896        0.01632
   55854.716270       0.000312        4.61439        0.33110        0.97222     0        3.81588        0.26982        3.76666        0.27027        0.04922        0.01556
   55854.716883       0.000301        4.71591        0.33851        0.99038     0        3.90942        0.27575        3.84921        0.27630        0.06021        0.01738
   55854.717453       0.000269        5.21915        0.37782        0.98925     0        4.35508        0.30795        4.26520        0.30877        0.08988        0.02247
   55854.718006       0.000284        4.91096        0.35499        1.00000     0        4.08844        0.28910        4.00934        0.28982        0.07910        0.02042
   55854.718573       0.000284        5.19207        0.36811        0.96939     0        4.28081        0.30045        4.24273        0.30080        0.03808        0.01439
   55854.719155       0.000298        4.78701        0.34223        0.99029     0        3.96739        0.27914        3.91166        0.27965        0.05573        0.01680
   55854.719751       0.000298        4.72981        0.33851        1.00000     0        3.90942        0.27575        3.85925        0.27621        0.05018        0.01587
   55854.720289       0.000240        6.01904        0.43298        0.97590     0        5.02071        0.35238        4.91224        0.35336        0.10847        0.02631
   55854.721007       0.000477        4.95717        0.27635        0.98788     0        4.11728        0.22495        4.04436        0.22546        0.07292        0.01521