/*
**
**  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
   56280.172312       0.000249       12.57923        0.92951        0.98837     0        4.71373        0.33331        4.62862        0.33409        0.08511        0.02275
   56280.172873       0.000312       11.82070        0.86648        0.99074     0        3.74455        0.26478        3.62865        0.26583        0.11590        0.02366
   56280.173472       0.000286       11.94392        0.85864        0.94949     0        4.26241        0.30140        4.20195        0.30195        0.06047        0.01823
   56280.174013       0.000255       12.86819        0.92888        0.98864     0        4.60537        0.32565        4.52222        0.32641        0.08315        0.02222
   56280.174551       0.000284       11.62225        0.84379        0.98980     0        4.13059        0.29208        4.03470        0.29295        0.09589        0.02260
   56280.175095       0.000260       12.38787        0.90402        1.00000     0        4.47411        0.31558        4.34206        0.31678        0.13205        0.02754
   56280.175625       0.000269       12.51938        0.90302        0.97849     0        4.44696        0.31289        4.35043        0.31376        0.09653        0.02341
   56280.176203       0.000310       10.67735        0.77672        0.97196     0        3.87183        0.27310        3.76749        0.27405        0.10434        0.02277
   56280.176773       0.000260       12.31090        0.88991        1.00000     0        4.45186        0.31479        4.36573        0.31558        0.08612        0.02224
   56280.177329       0.000295       11.47392        0.83090        0.97059     0        4.04714        0.28618        3.96363        0.28694        0.08351        0.02088
   56280.177879       0.000255       12.95155        0.95046        0.98864     0        4.60537        0.32565        4.45688        0.32700        0.14849        0.02970
   56280.178434       0.000301       11.01266        0.79017        0.99038     0        3.88997        0.27506        3.83980        0.27552        0.05017        0.01586
   56280.179056       0.000321       10.70811        0.78006        0.94595     0        3.83496        0.27050        3.72669        0.27148        0.10827        0.02308
   56280.179670       0.000292       11.45282        0.82550        0.98020     0        4.04714        0.28618        3.97929        0.28679        0.06785        0.01882
   56280.180251       0.000289       11.32850        0.81922        1.00000     0        4.02670        0.28402        3.93886        0.28482        0.08784        0.02131
   56280.180804       0.000263       12.84333        0.92626        0.98901     0        4.49637        0.31636        4.39877        0.31725        0.09761        0.02367
   56280.181328       0.000260       13.78839        1.00429        0.94444     0        4.71373        0.33331        4.59214        0.33442        0.12158        0.02719
   56280.181866       0.000278       12.31178        0.88463        0.97917     0        4.30504        0.30290        4.22808        0.30360        0.07696        0.02057
   56280.182439       0.000295       11.23336        0.81886        1.00000     0        3.98703        0.27983        3.85531        0.28102        0.13172        0.02583
   56280.183035       0.000301       12.11329        0.84195        0.99038     0        4.25952        0.28783        4.15416        0.28875        0.10535        0.02299