/*
**
**  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
   56710.101885       0.000292       21.95376        0.70546        1.00000     0       19.99366        0.62974       19.72113        0.63366        0.27253        0.07037
   56710.102464       0.000286       22.33510        0.71774        1.00000     0       20.23568        0.63991       20.01326        0.64312        0.22243        0.06421
   56710.103045       0.000295       21.91935        0.71192        1.00000     0       19.69944        0.62202       19.32164        0.62746        0.37780        0.08244
   56710.103621       0.000281       23.24119        0.74849        1.00000     0       20.77683        0.65506       20.47415        0.65942        0.30268        0.07567
   56710.104191       0.000289       22.40329        0.72799        1.00000     0       20.17356        0.63572       19.75150        0.64179        0.42205        0.08800
   56710.104767       0.000286       22.85373        0.73134        1.00000     0       20.45827        0.64342       20.21731        0.64688        0.24096        0.06683
   56710.105340       0.000286       22.65985        0.72843        1.00000     0       20.27615        0.64055       20.03519        0.64402        0.24096        0.06683
   56710.105916       0.000289       22.46948        0.72418        1.00000     0       20.07339        0.63414       19.79814        0.63811        0.27525        0.07107
   56710.106509       0.000304       21.63243        0.69543        1.00000     0       19.21291        0.60545       18.95077        0.60922        0.26215        0.06769
   56710.107108       0.000295       21.91704        0.70320        1.00000     0       19.69944        0.62202       19.48355        0.62513        0.21588        0.06232
   56710.107854       0.000451       22.99728        0.59075        0.99544     0       20.75719        0.51748       20.33178        0.52231        0.42540        0.07090