/*
**
**  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
   55600.364233       0.000272        5.29515        0.38300        0.97872     0        4.35508        0.30795        4.26909        0.30875        0.08599        0.02220
   55600.364748       0.000243        5.80584        0.41610        0.97619     0        4.88618        0.34551        4.82830        0.34604        0.05788        0.01929
   55600.365275       0.000284        5.01408        0.36115        0.96939     0        4.23864        0.29897        4.16092        0.29969        0.07772        0.02077
   55600.365882       0.000324        4.30740        0.31143        0.99107     0        3.66376        0.25715        3.56873        0.25802        0.09502        0.02125
   55600.366484       0.000278        5.01587        0.36057        0.98958     0        4.21755        0.29823        4.15648        0.29879        0.06106        0.01841
   55600.367063       0.000301        4.63441        0.33329        0.99038     0        3.90942        0.27575        3.84286        0.27637        0.06656        0.01846
   55600.367673       0.000310        4.49352        0.32075        1.00000     0        3.76327        0.26544        3.72384        0.26581        0.03943        0.01394
   55600.368293       0.000310        4.69422        0.33709        0.95327     0        3.94775        0.27845        3.88570        0.27903        0.06204        0.01791
   55600.368865       0.000263        5.35774        0.38343        0.98901     0        4.45186        0.31479        4.40498        0.31523        0.04688        0.01657
   55600.369412       0.000284        4.88529        0.35331        0.98980     0        4.13059        0.29208        4.04904        0.29283        0.08155        0.02106
   55600.370011       0.000315        4.59681        0.33009        0.95413     0        3.87183        0.27310        3.81098        0.27366        0.06085        0.01757
   55600.370619       0.000292        4.74231        0.34363        0.99010     0        4.02670        0.28402        3.93178        0.28490        0.09493        0.02237
   55600.371195       0.000284        4.78867        0.35004        1.00000     0        4.08844        0.28910        3.97005        0.29020        0.11839        0.02524
   55600.371750       0.000272        5.04719        0.36447        1.00000     0        4.26242        0.30140        4.18387        0.30213        0.07855        0.02099
   55600.372338       0.000315        4.43413        0.32020        0.98165     0        3.74455        0.26478        3.67555        0.26542        0.06900        0.01844
   55600.372948       0.000295        4.78607        0.34614        0.97059     0        4.04714        0.28618        3.96724        0.28692        0.07991        0.02063
   55600.373512       0.000269        5.46347        0.38494        0.96774     0        4.56315        0.31870        4.52799        0.31903        0.03516        0.01435
   55600.374100       0.000318        4.32304        0.31456        0.99091     0        3.67584        0.25992        3.58392        0.26078        0.09193        0.02109
   55600.374739       0.000321        4.73697        0.33557        0.92797     0        3.96761        0.27779        3.92665        0.27817        0.04096        0.01448
   55600.375379       0.000318        4.99459        0.34023        0.96364     0        4.19566        0.28159        4.14094        0.28208        0.05473        0.01650