/*
**
**  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
   57927.354661       0.000339       18.37394        0.59065        1.00000     0       17.19101        0.54254       16.97377        0.54564        0.21724        0.05806
   57927.355329       0.000330       18.75939        0.60509        1.00000     0       17.57312        0.55571       17.33423        0.55912        0.23888        0.06168
   57927.355969       0.000310       20.04641        0.64352        1.00000     0       18.70404        0.59177       18.51740        0.59444        0.18664        0.05627
   57927.356620       0.000341       18.16404        0.58481        1.00000     0       16.99439        0.53714       16.77899        0.54022        0.21540        0.05757
   57927.357294       0.000333       18.54334        0.60418        1.00000     0       17.52483        0.55253       17.13015        0.55814        0.39468        0.07894
   57927.357971       0.000344       18.04666        0.57996        1.00000     0       16.86842        0.53289       16.67009        0.53573        0.19833        0.05501
   57927.358662       0.000347       17.91485        0.57589        1.00000     0       16.76124        0.52898       16.54943        0.53200        0.21181        0.05661
   57927.359328       0.000318       19.30684        0.62990        1.00000     0       18.23035        0.57621       17.83424        0.58185        0.39611        0.08086
   57927.359979       0.000333       18.58943        0.60185        1.00000     0       17.47257        0.55170       17.17261        0.55598        0.29995        0.06881
   57927.360647       0.000336       18.65809        0.59572        1.00000     0       17.39102        0.54804       17.23451        0.55027        0.15651        0.04949
   57927.361316       0.000333       18.74195        0.59914        1.00000     0       17.45515        0.55143       17.31306        0.55346        0.14208        0.04736
   57927.361976       0.000327       19.04317        0.61185        1.00000     0       17.81727        0.56203       17.59234        0.56523        0.22493        0.06012
   57927.362647       0.000344       18.06159        0.57968        1.00000     0       16.86842        0.53289       16.68534        0.53551        0.18308        0.05285
   57927.363312       0.000321       19.39266        0.62457        1.00000     0       18.19245        0.57301       17.91440        0.57696        0.27805        0.06744
   57927.363955       0.000321       19.29521        0.62355        1.00000     0       18.12026        0.57187       17.82585        0.57606        0.29441        0.06939
   57927.364629       0.000353       17.56636        0.56557        1.00000     0       16.43720        0.51953       16.22886        0.52251        0.20834        0.05568
   57927.365309       0.000327       19.01479        0.60879        1.00000     0       17.71090        0.56035       17.56630        0.56242        0.14460        0.04820
   57927.366136       0.000501       18.27339        0.48422        1.00000     0       17.09204        0.44489       16.88215        0.44736        0.20989        0.04693