/*
**
**  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
   58276.264540       0.000318       21.56560        0.69236        1.00000     0       18.41244        0.57908       18.11902        0.58172        0.29342        0.05545
   58276.265180       0.000321       21.22728        0.68327        1.00000     0       18.02998        0.57044       17.79113        0.57261        0.23885        0.04980
   58276.265843       0.000341       20.21905        0.64841        0.99153     0       17.10537        0.54119       16.92803        0.54280        0.17734        0.04180
   58276.266514       0.000330       21.13006        0.67790        1.00000     0       17.59065        0.55599       17.38842        0.55782        0.20223        0.04522
   58276.267168       0.000324       21.52096        0.68616        1.00000     0       17.94055        0.56648       17.80675        0.56770        0.13380        0.03711
   58276.267796       0.000304       22.93698        0.73451        1.00000     0       19.13658        0.60425       18.92800        0.60614        0.20859        0.04785
   58276.268412       0.000312       22.05708        0.70304        1.00000     0       18.64211        0.58805       18.49268        0.58940        0.14943        0.03994
   58276.269043       0.000318       21.97344        0.70194        1.00000     0       18.30316        0.57736       18.12502        0.57897        0.17815        0.04321
   58276.269757       0.000396       21.47602        0.62295        0.99839     0       17.88324        0.51179       17.69783        0.51331        0.18540        0.03953
   58276.603823       0.000284       22.40846        0.72043        0.99188     0       20.63003        0.65205       20.37023        0.65492        0.25981        0.06124
   58276.604384       0.000278       22.64993        0.72439        1.00000     0       20.90977        0.66056       20.71978        0.66266        0.18999        0.05269
   58276.604937       0.000275       22.57856        0.73295        1.00000     0       21.06661        0.66652       20.66786        0.67092        0.39875        0.07674
   58276.605495       0.000284       22.34901        0.71315        1.00000     0       20.68746        0.65030       20.45840        0.65282        0.22906        0.05727
   58276.606062       0.000284       22.23310        0.70813        1.00000     0       20.42171        0.64611       20.32150        0.64722        0.10022        0.03788
   58276.606624       0.000278       22.65458        0.72869        1.00000     0       20.90977        0.66056       20.63209        0.66363        0.27768        0.06370
   58276.607174       0.000272       23.12498        0.74292        1.00000     0       21.48253        0.67664       21.16909        0.68008        0.31344        0.06840
   58276.607732       0.000286       21.97768        0.70284        1.00000     0       20.31661        0.64119       20.11821        0.64338        0.19841        0.05303
   58276.608522       0.000503       22.50226        0.53851        1.00000     0       20.89682        0.49050       20.59847        0.49295        0.29834        0.04905