/*
**
**  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
   57163.917119       0.000246       25.38369        0.81294        1.00000     0       23.56864        0.74531       23.36248        0.74815        0.20616        0.06519
   57163.917625       0.000260       23.70483        0.77290        1.00000     0       22.30379        0.70460       21.81702        0.71130        0.48676        0.09735
   57163.918132       0.000246       25.50218        0.81806        1.00000     0       23.73362        0.74791       23.44500        0.75188        0.28862        0.07714
   57163.918627       0.000249       24.87176        0.80046        1.00000     0       23.41106        0.73848       23.08504        0.74296        0.32602        0.08150
   57163.919116       0.000240       26.03913        0.83362        1.00000     0       24.16069        0.76365       23.94957        0.76656        0.21113        0.06676
   57163.919610       0.000255       24.39262        0.80585        1.00000     0       22.90175        0.72205       22.16497        0.73214        0.73679        0.12113
   57163.920117       0.000252       24.71055        0.79421        1.00000     0       23.09591        0.72926       22.81392        0.73315        0.28199        0.07536
   57163.920623       0.000255       25.29023        0.80434        1.00000     0       23.12941        0.72563       22.91036        0.72863        0.21904        0.06604
   57163.921138       0.000260       24.05371        0.77123        1.00000     0       22.25927        0.70390       22.04509        0.70686        0.21418        0.06458
   57163.921656       0.000258       24.29474        0.78165        1.00000     0       22.53188        0.71216       22.25623        0.71597        0.27565        0.07367
   57163.922165       0.000252       25.19312        0.80520        1.00000     0       23.23407        0.73144       22.99237        0.73476        0.24170        0.06977
   57163.922651       0.000234       26.85029        0.86100        1.00000     0       24.85619        0.78406       24.57494        0.78793        0.28124        0.07800
   57163.923132       0.000246       25.70425        0.82730        1.00000     0       23.56864        0.74531       23.28002        0.74929        0.28862        0.07714
   57163.923635       0.000258       24.34332        0.78953        1.00000     0       22.62192        0.71359       22.18876        0.71954        0.43317        0.09235
   57163.924150       0.000258       24.69568        0.78830        1.00000     0       22.82451        0.71677       22.56854        0.72028        0.25596        0.07099
   57163.924674       0.000266       23.46180        0.75025        1.00000     0       21.84070        0.68963       21.65023        0.69226        0.19047        0.06023
   57163.925192       0.000252       24.66137        0.78735        1.00000     0       23.04986        0.72854       22.88872        0.73076        0.16114        0.05697
   57163.925684       0.000240       26.17058        0.84812        1.00000     0       24.28138        0.76555       23.81690        0.77193        0.46448        0.09903
   57163.926173       0.000249       25.24844        0.80449        1.00000     0       23.52753        0.74031       23.32377        0.74311        0.20376        0.06444
   57163.926737       0.000315       24.86360        0.71784        1.00000     0       23.13943        0.65214       22.75359        0.65688        0.38584        0.07876