/*
**
**  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
   57840.048999       0.000448       14.05586        0.45053        1.00000     0       12.91182        0.40851       12.79602        0.41015        0.11580        0.03662
   57840.049911       0.000463       13.53656        0.44135        1.00000     0       12.50832        0.39575       12.25030        0.39939        0.25802        0.05380
   57840.050779       0.000405       15.48854        0.50347        1.00000     0       14.33816        0.45296       14.05610        0.45693        0.28206        0.06014
   57840.051598       0.000414       15.14556        0.49589        1.00000     0       14.02335        0.44324       13.68445        0.44801        0.33890        0.06522
   57840.052428       0.000417       15.18338        0.49099        1.00000     0       14.00943        0.44147       13.76014        0.44498        0.24930        0.05574
   57840.053285       0.000440       14.42030        0.46520        1.00000     0       13.16666        0.41657       12.98953        0.41908        0.17713        0.04574
   57840.054161       0.000437       14.35193        0.46634        1.00000     0       13.30692        0.42017       13.04541        0.42386        0.26151        0.05575
   57840.055027       0.000428       14.66120        0.47658        1.00000     0       13.56312        0.42848       13.29631        0.43223        0.26681        0.05688
   57840.055866       0.000411       15.30154        0.49345        1.00000     0       14.10800        0.44613       13.91839        0.44881        0.18960        0.04896
   57840.056711       0.000434       14.56104        0.46929        0.99333     0       13.45865        0.42539       13.27795        0.42794        0.18070        0.04666
   57840.057573       0.000428       14.67754        0.47391        1.00000     0       13.60373        0.42912       13.38543        0.43219        0.21830        0.05145
   57840.058508       0.000506       14.50489        0.43470        1.00000     0       13.41662        0.39190       13.18072        0.39498        0.23590        0.04919