/*
**
**  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
   56428.150860       0.000480       13.11881        0.42150        1.00000     0       12.10447        0.38220       11.96059        0.38428        0.14388        0.03990
   56428.151832       0.000492       12.78443        0.40970        1.00000     0       11.87858        0.37414       11.73809        0.37616        0.14049        0.03896
   56428.152819       0.000495       12.55014        0.40691        1.00000     0       11.72711        0.37066       11.52298        0.37361        0.20413        0.04683
   56428.153817       0.000503       12.35572        0.39920        1.00000     0       11.51340        0.36409       11.34447        0.36653        0.16894        0.04223
   56428.154946       0.000625       12.70384        0.36373        0.99851     0       11.84283        0.33167       11.66395        0.33395        0.17888        0.03904
   56428.215556       0.000489       12.93504        0.41453        0.99532     0       11.99316        0.37794       11.84809        0.37967        0.14507        0.03627
   56428.216537       0.000492       12.75779        0.40949        0.99412     0       11.90145        0.37561       11.75706        0.37734        0.14439        0.03610
   56428.217541       0.000512       12.12384        0.39115        1.00000     0       11.34090        0.35827       11.16856        0.36034        0.17233        0.03853
   56428.218542       0.000489       12.80508        0.41469        1.00000     0       11.88960        0.37542       11.67301        0.37801        0.21659        0.04421
   56428.219555       0.000524       11.79872        0.38248        0.99448     0       11.11849        0.35177       10.92361        0.35411        0.19488        0.04064
   56428.220565       0.000486       12.81864        0.41118        1.00000     0       11.91267        0.37690       11.79465        0.37832        0.11802        0.03273
   56428.221615       0.000564       12.43615        0.37625        1.00000     0       11.67069        0.34626       11.50645        0.34811        0.16425        0.03584