/*
**
**  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
   55150.524921       0.000124       55.29749        1.79061        1.00000     0
   55150.525179       0.000133       56.92839        1.82365        1.00000     0
   55150.525451       0.000139       55.14108        1.77388        1.00000     0
   55150.525720       0.000130       56.10437        1.79940        1.00000     0
   55150.525980       0.000130       56.05184        1.79127        1.00000     0
   55150.526235       0.000124       56.57477        1.82186        1.00000     0
   55150.526484       0.000124       56.43591        1.81270        1.00000     0
   55150.526738       0.000130       54.52685        1.76440        1.00000     0
   55150.526999       0.000130       55.50311        1.75489        1.00000     0
   55150.527253       0.000124       56.24312        1.80420        1.00000     0
   55150.527511       0.000133       53.65541        1.70661        1.00000     0
   55150.527771       0.000127       57.09669        1.83281        1.00000     0
   55150.528023       0.000124       58.25154        1.87156        1.00000     0
   55150.528278       0.000130       54.61246        1.74990        1.00000     0
   55150.528529       0.000122       57.27173        1.84591        1.00000     0
   55150.528778       0.000127       54.77215        1.75919        1.00000     0
   55150.529039       0.000133       52.67970        1.68380        1.00000     0
   55150.529296       0.000124       56.09929        1.80089        1.00000     0
   55150.529554       0.000133       53.35592        1.69596        1.00000     0
   55150.529820       0.000133       52.01395        1.67871        1.00000     0
   55150.530077       0.000124       56.20813        1.80102        1.00000     0
   55150.530326       0.000124       58.20660        1.85669        1.00000     0
   55150.530575       0.000124       57.77023        1.82596        1.00000     0
   55150.530830       0.000130       53.51642        1.71371        1.00000     0
   55150.531084       0.000124       55.75810        1.80292        1.00000     0
   55150.531333       0.000124       55.72181        1.80027        1.00000     0
   55150.531576       0.000119       59.28463        1.89868        1.00000     0
   55150.531831       0.000136       53.09341        1.70017        0.98444     0
   55150.551197       0.000116       55.28526        1.77093        0.99033     0
   55150.551429       0.000116       55.35564        1.76076        1.00000     0
   55150.551654       0.000110       57.19239        1.83788        1.00000     0
   55150.551877       0.000113       57.38030        1.82948        1.00000     0
   55150.552100       0.000110       57.97253        1.83963        1.00000     0
   55150.552331       0.000122       52.27028        1.67382        1.00000     0
   55150.552615       0.000162       58.03882        1.52872        0.99778     0
   55150.591886       0.000127       52.62294        1.67464        0.97792     0
   55150.592129       0.000116       56.02690        1.79698        1.00000     0
   55150.592363       0.000119       55.10046        1.74745        1.00000     0
   55150.592598       0.000116       56.24950        1.81027        1.00000     0
   55150.592826       0.000113       57.81807        1.83953        1.00000     0
   55150.593055       0.000116       55.82894        1.77498        1.00000     0
   55150.593289       0.000119       54.56116        1.76092        1.00000     0
   55150.593529       0.000122       53.73998        1.70699        1.00000     0
   55150.593770       0.000119       55.18821        1.76667        1.00000     0
   55150.594010       0.000122       54.19249        1.72872        1.00000     0
   55150.594276       0.000145       56.94983        1.62545        1.00000     0