/*
**
**  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
   54973.759915       0.000362       22.25089        0.72401        1.00000     0       16.15484        0.50883       15.89324        0.51255        0.26160        0.06166
   54973.760629       0.000353       23.04440        0.74573        1.00000     0       16.43714        0.51953       16.18400        0.52314        0.25314        0.06140
   54973.761356       0.000373       22.78399        0.74339        1.00000     0       15.56073        0.49158       15.22275        0.49640        0.33798        0.06899
   54973.762085       0.000356       23.62890        0.76673        1.00000     0       16.27093        0.51479       15.99031        0.51880        0.28062        0.06438
   54973.762791       0.000350       24.16142        0.78372        1.00000     0       16.58954        0.52408       16.28927        0.52837        0.30027        0.06714
   54973.763523       0.000382       23.33575        0.73597        0.99380     0       16.06553        0.49532       15.81626        0.49879        0.24927        0.05875
   54973.784663       0.000301       20.63459        0.66280        0.99882     0       19.36273        0.61108       19.11893        0.61411        0.24380        0.06095
   54973.785265       0.000301       20.73810        0.66365        1.00000     0       19.39761        0.61127       19.18453        0.61392        0.21308        0.05695
   54973.785870       0.000304       20.68887        0.66200        1.00000     0       19.17471        0.60485       18.97874        0.60728        0.19597        0.05435
   54973.786468       0.000295       21.36992        0.68719        1.00000     0       19.71903        0.62233       19.45522        0.62561        0.26381        0.06398
   54973.787059       0.000295       21.33849        0.68647        1.00000     0       19.66011        0.62140       19.41182        0.62449        0.24829        0.06207
   54973.787643       0.000289       21.64744        0.69114        1.00000     0       20.09338        0.63446       19.93509        0.63643        0.15828        0.05005
   54973.788286       0.000353       19.10053        0.59174        0.99353     0       17.83341        0.54290       17.61142        0.54557        0.22200        0.05384
   54973.826868       0.000399       21.02627        0.68338        0.99564     0       14.60967        0.46154       14.36948        0.46500        0.24018        0.05661
   54973.827661       0.000394       23.00595        0.74830        1.00000     0       14.78927        0.46675       14.49270        0.47101        0.29657        0.06323
   54973.828702       0.000648       21.94556        0.57860        1.00000     0       13.52246        0.34776       13.29329        0.35045        0.22917        0.04331