/*
**
**  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
   56771.264163       0.000362       17.40250        0.55815        1.00000     0       16.02668        0.50681       15.85900        0.50865        0.16768        0.04329
   56771.264889       0.000365       17.53308        0.56202        1.00000     0       15.94718        0.50354       15.76974        0.50549        0.17744        0.04436
   56771.265601       0.000347       18.19123        0.58201        1.00000     0       16.74454        0.52872       16.58152        0.53051        0.16302        0.04357
   56771.266304       0.000356       17.75010        0.57167        1.00000     0       16.33614        0.51582       16.09757        0.51844        0.23857        0.05206
   56771.267019       0.000359       17.85531        0.57386        1.00000     0       16.26902        0.51268       16.03238        0.51527        0.23664        0.05164
   56771.267722       0.000344       18.28652        0.58702        1.00000     0       16.86842        0.53289       16.66880        0.53509        0.19962        0.04841
   56771.268431       0.000365       17.33528        0.55756        1.00000     0       15.93128        0.50329       15.72058        0.50560        0.21071        0.04834
   56771.269145       0.000350       18.15709        0.58090        1.00000     0       16.63927        0.52487       16.46605        0.52677        0.17322        0.04473
   56771.269866       0.000370       17.19174        0.54998        1.00000     0       15.76061        0.49666       15.58595        0.49857        0.17467        0.04367
   56771.270607       0.000370       17.10072        0.54819        1.00000     0       15.66671        0.49518       15.50296        0.49698        0.16375        0.04228
   56771.271339       0.000362       17.59170        0.56484        1.00000     0       16.13887        0.50858       15.91530        0.51103        0.22357        0.04999
   56771.272065       0.000365       17.39096        0.55591        1.00000     0       15.94718        0.50354       15.80301        0.50512        0.14417        0.03998
   56771.272800       0.000370       17.15952        0.54516        1.00000     0       15.68236        0.49542       15.61686        0.49615        0.06550        0.02674
   56771.273517       0.000347       18.40341        0.58744        1.00000     0       16.76124        0.52898       16.62150        0.53052        0.13973        0.04034
   56771.274412       0.000547       17.61610        0.45580        1.00000     0       16.11148        0.41325       16.00797        0.41418        0.10351        0.02766