/*
**
**  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
   58504.182107       0.000312       22.47159        0.73314        1.00000     0       18.71635        0.58922       18.26108        0.59570        0.45527        0.08762
   58504.182726       0.000307       22.44104        0.73032        1.00000     0       18.91830        0.59795       18.54033        0.60336        0.37796        0.08058
   58504.183334       0.000301       23.31634        0.75508        0.99038     0       19.60546        0.61751       19.23417        0.62281        0.37129        0.08102
   58504.183939       0.000304       22.62753        0.73563        1.00000     0       19.13663        0.60425       18.75507        0.60970        0.38156        0.08135
   58504.184564       0.000321       21.27278        0.69365        1.00000     0       18.04807        0.57073       17.67073        0.57613        0.37734        0.07868
   58504.185200       0.000315       21.83020        0.70632        1.00000     0       18.50788        0.58323       18.17374        0.58800        0.33415        0.07472
   58504.185828       0.000312       21.94232        0.71202        1.00000     0       18.62361        0.58776       18.26950        0.59281        0.35410        0.07727
   58504.186450       0.000310       21.94773        0.71589        1.00000     0       18.89127        0.59472       18.43174        0.60126        0.45953        0.08844
   58504.187069       0.000310       22.34182        0.72193        1.00000     0       18.76021        0.59266       18.47088        0.59680        0.28933        0.07017
   58504.187703       0.000324       21.27495        0.68710        1.00000     0       17.94059        0.56648       17.66418        0.57044        0.27642        0.06704
   58504.188340       0.000312       22.01308        0.71670        1.00000     0       18.60506        0.58746       18.21723        0.59300        0.38783        0.08087
   58504.188953       0.000301       22.86726        0.73079        1.00000     0       19.32064        0.61006       19.16304        0.61232        0.15759        0.05253
   58504.189566       0.000312       22.03252        0.70829        1.00000     0       18.67925        0.58863       18.42632        0.59224        0.25293        0.06531
   58504.190180       0.000301       22.53144        0.72930        1.00000     0       19.28211        0.60945       18.96692        0.61396        0.31519        0.07429
   58504.190793       0.000312       21.75626        0.70427        1.00000     0       18.56796        0.58688       18.26444        0.59122        0.30352        0.07154
   58504.191401       0.000295       23.32301        0.75137        1.00000     0       19.83696        0.62419       19.51559        0.62877        0.32137        0.07575
   58504.191997       0.000301       22.68159        0.73207        1.00000     0       19.33990        0.61036       19.04222        0.61462        0.29768        0.07220
   58504.192605       0.000307       22.34883        0.72279        1.00000     0       18.95609        0.59855       18.64685        0.60297        0.30924        0.07289
   58504.193212       0.000301       22.58251        0.72289        1.00000     0       19.30137        0.60975       19.12627        0.61226        0.17511        0.05537
   58504.193840       0.000327       20.60983        0.66415        1.00000     0       17.76410        0.56119       17.52236        0.56465        0.24174        0.06242
   58504.194633       0.000466       22.78962        0.58881        1.00000     0       19.46098        0.49209       19.17820        0.49533        0.28278        0.05656