/*
**
**  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
   55657.236456       0.000344       18.56783        0.80944        0.99160     0        9.98273        0.41168        9.83231        0.41329        0.15041        0.03648
   55657.236959       0.000159       16.03662        1.16016        1.00000     0        7.35771        0.51769        7.20585        0.52046        0.15186        0.05369
   55657.237633       0.000515       19.40514        0.62721        0.99438     0       11.32960        0.35809       11.14085        0.35965        0.18875        0.03337
   55657.238418       0.000269       16.74218        0.78964        1.00000     0        9.99514        0.46401        9.87165        0.46550        0.12349        0.03723
   55657.239245       0.000558       17.50909        0.56418        1.00000     0       10.39036        0.32841       10.23348        0.32970        0.15688        0.02913
   55657.239922       0.000119       16.66309        1.18484        1.00000     0        9.91896        0.69617        9.81710        0.69803        0.10186        0.05093
   55657.240567       0.000527       18.38268        0.58944        1.00000     0       11.02936        0.34843       10.90453        0.34952        0.12483        0.02757
   55657.241589       0.000495       19.20791        0.61847        1.00000     0       11.76228        0.37121       11.60110        0.37354        0.16118        0.04162
   55657.242625       0.000541       17.75993        0.57328        1.00000     0       10.75588        0.33945       10.57716        0.34140        0.17872        0.03646
   55657.243661       0.000495       19.31361        0.62509        1.00000     0       11.75056        0.37103       11.54210        0.37355        0.20846        0.04331
   55657.244656       0.000501       18.79723        0.60941        1.00000     0       11.56840        0.36601       11.37655        0.36879        0.19185        0.04522
   55657.245692       0.000535       18.25794        0.58867        1.00000     0       10.82884        0.34244       10.66923        0.34394        0.15962        0.03209
   55657.246760       0.000532       18.05170        0.58569        1.00000     0       10.89858        0.34447       10.70377        0.34724        0.19482        0.04376
   55657.247865       0.000573       17.26764        0.56163        1.00000     0       10.11786        0.31995        9.89604        0.32178        0.22182        0.03423
   55657.248988       0.000550       17.89889        0.58261        1.00000     0       10.57551        0.33393       10.32233        0.33601        0.25317        0.03733
   55657.250113       0.000576       17.44960        0.56070        1.00000     0       10.06701        0.31835        9.94090        0.31939        0.12612        0.02574