/*
**
**  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
   56338.002759       0.000436       10.05762        0.79313        0.99892     1        2.17542        0.17039        2.16201        0.17048        0.01341        0.00548
   56338.004234       0.000524       11.93334        0.38378        1.00000     0       11.06814        0.35001       10.93947        0.35182        0.12868        0.03569
   56338.005290       0.000532       11.74196        0.37822        1.00000     0       10.90946        0.34464       10.76341        0.34670        0.14605        0.03771
   56338.006338       0.000515       11.99092        0.39253        1.00000     0       11.26594        0.35608       10.99419        0.35990        0.27175        0.05230
   56338.007376       0.000524       11.99579        0.38614        1.00000     0       11.07921        0.35018       10.94064        0.35213        0.13857        0.03704
   56338.008386       0.000486       12.77067        0.41790        1.00000     0       11.91268        0.37690       11.63542        0.38080        0.27727        0.05438
   56338.009419       0.000547       11.31191        0.36905        1.00000     0       10.59965        0.33519       10.37215        0.33839        0.22750        0.04644
   56338.010484       0.000518       11.98903        0.38971        1.00000     0       11.21420        0.35427       10.99400        0.35737        0.22019        0.04695
   56338.011537       0.000535       11.55971        0.37852        1.00000     0       10.86132        0.34295       10.59017        0.34676        0.27116        0.05124
   56338.012203       0.000130       10.86193        0.73837        1.00000     0        9.97215        0.66629        9.85272        0.66985        0.11944        0.06896
   56338.012753       0.000420       11.60633        0.42817        1.00000     0       10.91472        0.38833       10.64289        0.39263        0.27182        0.05795