/*
**
**  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
   57519.914791       0.000321       20.90216        0.67615        1.00000     0       18.10221        0.57159       17.80454        0.57588        0.29767        0.07016
   57519.915433       0.000321       20.62667        0.66580        1.00000     0       18.08417        0.57130       17.81957        0.57512        0.26459        0.06615
   57519.916067       0.000312       21.97701        0.70314        0.99074     0       18.83510        0.59384       18.64639        0.59656        0.18871        0.05690
   57519.916701       0.000321       21.13594        0.68477        1.00000     0       18.13831        0.57216       17.80757        0.57692        0.33074        0.07396
   57519.917334       0.000312       21.39804        0.69821        1.00000     0       18.53086        0.58629       18.13993        0.59193        0.39092        0.08151
   57519.917974       0.000327       20.59249        0.66536        1.00000     0       17.81728        0.56203       17.52488        0.56624        0.29240        0.06892
   57519.918610       0.000310       21.65053        0.69766        1.00000     0       18.72276        0.59207       18.48259        0.59554        0.24018        0.06419
   57519.919224       0.000304       22.21414        0.71525        1.00000     0       19.15570        0.60455       18.89347        0.60833        0.26223        0.06771
   57519.919831       0.000304       22.27202        0.71848        1.00000     0       19.19386        0.60515       18.89667        0.60943        0.29720        0.07208
   57519.920448       0.000312       22.01422        0.70376        1.00000     0       18.64215        0.58805       18.47219        0.59050        0.16997        0.05375
   57519.921050       0.000289       23.40837        0.75391        1.00000     0       20.05339        0.63383       19.79640        0.63754        0.25699        0.06868
   57519.921631       0.000292       22.69256        0.73594        1.00000     0       19.89451        0.62818       19.53102        0.63341        0.36349        0.08128
   57519.922227       0.000304       22.12387        0.71429        1.00000     0       19.06031        0.60304       18.79808        0.60683        0.26223        0.06771
   57519.922861       0.000330       20.41923        0.65562        1.00000     0       17.69613        0.55765       17.47070        0.56090        0.22543        0.06025
   57519.923500       0.000310       21.84828        0.69815        1.00000     0       18.83510        0.59384       18.66355        0.59631        0.17155        0.05425
   57519.924123       0.000312       21.34187        0.69272        1.00000     0       18.62360        0.58776       18.26668        0.59289        0.35693        0.07789
   57519.924748       0.000312       21.67560        0.69916        1.00000     0       18.60505        0.58746       18.33311        0.59138        0.27194        0.06799
   57519.925373       0.000312       21.89525        0.69839        1.00000     0       18.92039        0.59242       18.68244        0.59582        0.23795        0.06360