/*
**
**  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
   55533.516912       0.000486       23.30631        0.78394        0.99405     0       11.99602        0.37935       11.65247        0.38418        0.34356        0.06073
   55533.517861       0.000463       22.07274        0.72090        1.00000     0       12.59597        0.39713       12.30462        0.40122        0.29135        0.05714
   55533.518767       0.000443       22.34252        0.73533        1.00000     0       13.10679        0.41427       12.74352        0.41937        0.36327        0.06525
   55533.519626       0.000417       24.33739        0.80188        1.00000     0       13.91205        0.43994       13.53853        0.44519        0.37353        0.06820
   55533.520457       0.000414       24.27477        0.78165        1.00000     0       14.05137        0.44368       13.86330        0.44633        0.18807        0.04856
   55533.521270       0.000399       25.06533        0.81490        1.00000     0       14.50241        0.45884       14.22957        0.46268        0.27284        0.05954
   55533.522080       0.000411       24.81633        0.80101        1.00000     0       14.12211        0.44636       13.92009        0.44921        0.20202        0.05050
   55533.522919       0.000428       23.14620        0.74360        1.00000     0       13.53605        0.42805       13.39068        0.43010        0.14537        0.04197
   55533.523781       0.000434       22.95189        0.74202        1.00000     0       13.40899        0.42318       13.19384        0.42621        0.21515        0.05071
   55533.524621       0.000405       24.10484        0.78210        1.00000     0       14.32385        0.45273       14.06772        0.45634        0.25613        0.05727
   55533.525419       0.000394       24.38471        0.80094        0.99265     0       14.91372        0.47044       14.50201        0.47621        0.41171        0.07395
   55533.526209       0.000396       24.01067        0.79013        1.00000     0       14.63751        0.46265       14.23181        0.46835        0.40570        0.07287
   55533.527040       0.000434       22.16561        0.72686        1.00000     0       13.34222        0.42213       13.01949        0.42667        0.32273        0.06211
   55533.527896       0.000422       22.72088        0.73769        1.00000     0       13.74892        0.43434       13.49103        0.43798        0.25789        0.05628
   55533.528741       0.000422       23.49097        0.75632        1.00000     0       13.73520        0.43413       13.56327        0.43655        0.17192        0.04595
   55533.529589       0.000425       22.64338        0.74780        1.00000     0       13.68265        0.43182       13.25576        0.43781        0.42689        0.07216
   55533.530622       0.000608       20.64800        0.59246        1.00000     0       12.22035        0.34144       11.99837        0.34420        0.22198        0.04353