/*
**
**  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)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode
   54509.163097       0.000122       63.83918        2.02145        1.00000     0
   54509.163334       0.000116       69.25925        2.22100        1.00000     0
   54509.163569       0.000119       67.70464        2.18828        1.00000     0
   54509.163809       0.000122       63.63256        2.05509        1.00000     0
   54509.164046       0.000116       65.77293        2.11764        1.00000     0
   54509.164286       0.000124       62.64902        2.01138        1.00000     0
   54509.164532       0.000122       64.37476        2.05110        1.00000     0
   54509.164767       0.000113       66.82067        2.13881        1.00000     0
   54509.165001       0.000122       63.55215        2.03031        1.00000     0
   54509.165238       0.000116       64.70508        2.05879        1.00000     0
   54509.165473       0.000119       62.91460        2.04089        1.00000     0
   54509.165707       0.000116       65.70770        2.13154        1.00000     0
   54509.165947       0.000124       62.92498        1.99174        1.00000     0
   54509.166193       0.000122       64.80372        2.08202        1.00000     0
   54509.166430       0.000116       66.51637        2.11842        1.00000     0
   54509.166656       0.000110       69.14586        2.20732        1.00000     0
   54509.166885       0.000119       64.79069        2.08601        1.00000     0
   54509.167125       0.000122       63.97113        2.03813        1.00000     0
   54509.167371       0.000124       62.81469        2.01187        1.00000     0
   54509.167611       0.000116       65.68390        2.11671        1.00000     0
   54509.167842       0.000116       65.06089        2.09047        1.00000     0
   54509.168071       0.000113       69.56612        2.20661        1.00000     0
   54509.168300       0.000116       67.36293        2.16586        1.00000     0
   54509.168531       0.000116       65.09613        2.09498        1.00000     0
   54509.168768       0.000122       65.06844        2.07085        1.00000     0
   54509.169009       0.000119       64.07780        2.04538        1.00000     0
   54509.169243       0.000116       65.06809        2.07272        1.00000     0
   54509.169474       0.000116       65.75671        2.09565        1.00000     0
   54509.169712       0.000122       60.67239        1.96350        1.00000     0
   54509.169946       0.000113       69.72143        2.21391        1.00000     0
   54509.170180       0.000122       63.16916        2.03484        1.00000     0
   54509.170415       0.000113       66.29282        2.10650        1.00000     0
   54509.170638       0.000110       66.75825        2.15409        1.00000     0
   54509.170863       0.000116       63.34864        2.04272        1.00000     0
   54509.171095       0.000116       65.17976        2.09707        1.00000     0
   54509.171326       0.000116       65.70694        2.10162        1.00000     0
   54509.171549       0.000107       68.41639        2.21925        1.00000     0
   54509.171775       0.000119       63.32716        2.01547        1.00000     0
   54509.172012       0.000119       62.73432        1.99956        1.00000     0
   54509.172249       0.000119       65.19677        2.05873        1.00000     0
   54509.172481       0.000113       66.68788        2.14639        1.00000     0
   54509.172715       0.000122       59.87530        1.95568        1.00000     0
   54509.172952       0.000116       65.38452        2.09336        1.00000     0
   54509.173181       0.000113       66.92249        2.14253        1.00000     0
   54509.173410       0.000116       65.23389        2.07390        1.00000     0
   54509.173644       0.000119       63.75671        2.03942        1.00000     0
   54509.173878       0.000116       63.26550        2.04539        1.00000     0
   54509.174136       0.000142       64.29498        1.85793        1.00000     0