/*
**
**  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
   55672.152086       0.000336       18.87709        0.60558        1.00000     0       17.37376        0.54777       17.16803        0.55073        0.20573        0.05706
   55672.152760       0.000339       18.76642        0.60215        1.00000     0       17.17389        0.54227       16.98562        0.54499        0.18828        0.05435
   55672.153437       0.000339       19.07546        0.61006        1.00000     0       17.10540        0.54119       16.97989        0.54301        0.12552        0.04438
   55672.154117       0.000341       18.89574        0.60842        1.00000     0       17.04533        0.53795       16.81198        0.54131        0.23335        0.06025
   55672.154809       0.000350       18.60332        0.59519        1.00000     0       16.65583        0.52513       16.48895        0.52754        0.16688        0.05032
   55672.155503       0.000344       18.71603        0.59894        1.00000     0       16.88526        0.53316       16.73100        0.53539        0.15426        0.04878
   55672.156180       0.000333       19.23384        0.61636        1.00000     0       17.47257        0.55170       17.29698        0.55424        0.17559        0.05294
   55672.156852       0.000339       18.90423        0.61074        1.00000     0       17.12253        0.54146       16.87149        0.54509        0.25104        0.06276
   55672.157532       0.000341       19.04990        0.60919        1.00000     0       17.09626        0.53875       16.92514        0.54121        0.17113        0.05160
   55672.158206       0.000333       19.29091        0.62333        1.00000     0       17.42031        0.55088       17.16491        0.55457        0.25540        0.06385
   55672.158863       0.000324       19.84189        0.63851        1.00000     0       17.88692        0.56563       17.67385        0.56871        0.21307        0.05910
   55672.159537       0.000350       18.57261        0.59364        1.00000     0       16.68895        0.52565       16.52206        0.52806        0.16688        0.05032
   55672.160211       0.000324       19.86242        0.64019        1.00000     0       17.92270        0.56620       17.67685        0.56975        0.24585        0.06348
   55672.160894       0.000359       18.07512        0.58098        1.00000     0       16.31749        0.51344       16.08063        0.51685        0.23687        0.05922
   55672.161606       0.000353       18.42266        0.58590        1.00000     0       16.58499        0.52186       16.46462        0.52359        0.12037        0.04256
   55672.162294       0.000336       18.87645        0.61156        1.00000     0       17.27013        0.54613       16.98528        0.55024        0.28485        0.06714
   55672.162966       0.000336       19.23884        0.62023        1.00000     0       17.25286        0.54586       17.03131        0.54906        0.22155        0.05921
   55672.163657       0.000356       18.11158        0.57642        1.00000     0       16.38501        0.51659       16.28053        0.51810        0.10447        0.03949
   55672.164644       0.000631       18.42343        0.44078        1.00000     0       16.66077        0.39129       16.45025        0.39355        0.21052        0.04210