/*
**
**  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
   55972.321508       0.000399       16.10682        0.51998        1.00000     0       14.57499        0.45998       14.35083        0.46318        0.22416        0.05437
   55972.322315       0.000408       15.60100        0.50458        1.00000     0       14.20805        0.44930       13.98866        0.45244        0.21939        0.05321
   55972.323131       0.000408       15.54021        0.50611        1.00000     0       14.23647        0.44975       13.93965        0.45399        0.29682        0.06189
   55972.323976       0.000437       14.60660        0.47093        1.00000     0       13.28039        0.41975       13.09963        0.42234        0.18076        0.04667
   55972.324827       0.000414       15.38807        0.49890        1.00000     0       14.05136        0.44368       13.79687        0.44731        0.25449        0.05691
   55972.325666       0.000425       15.12323        0.48401        1.00000     0       13.69627        0.43204       13.56011        0.43398        0.13616        0.04105
   55972.326496       0.000405       15.88209        0.51096        0.99286     0       14.41248        0.45576       14.24230        0.45820        0.17018        0.04720
   55972.327315       0.000414       15.35558        0.49797        1.00000     0       14.00934        0.44301       13.76757        0.44647        0.24177        0.05547
   55972.328149       0.000420       15.18682        0.49093        1.00000     0       13.82992        0.43712       13.61658        0.44017        0.21333        0.05174
   55972.328993       0.000425       14.93757        0.48480        1.00000     0       13.64176        0.43117       13.39419        0.43471        0.24757        0.05536
   55972.329818       0.000399       16.00443        0.51614        1.00000     0       14.56047        0.45975       14.34950        0.46277        0.21097        0.05274
   55972.330654       0.000437       14.54430        0.47166        1.00000     0       13.26712        0.41954       13.03816        0.42282        0.22896        0.05253
   55972.331505       0.000414       15.78690        0.50301        1.00000     0       14.34556        0.44830       14.15469        0.45100        0.19087        0.04928