/*
**
**  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
   54477.373197       0.000275       27.81924        0.92092        1.00000     0
   54477.373698       0.000226       29.53115        0.95193        1.00000     0
   54477.374164       0.000240       28.61482        0.92346        1.00000     0
   54477.374659       0.000255       27.36767        0.88470        1.00000     0
   54477.375156       0.000243       28.58261        0.91874        1.00000     0
   54477.375631       0.000231       30.09503        0.96184        1.00000     0
   54477.376103       0.000240       28.76789        0.93289        1.00000     0
   54477.376571       0.000229       30.44724        0.98103        1.00000     0
   54477.377046       0.000246       28.12685        0.91011        1.00000     0
   54477.377561       0.000269       25.87898        0.82916        1.00000     0
   54477.378073       0.000243       28.59411        0.92300        1.00000     0
   54477.378559       0.000243       28.67610        0.91896        1.00000     0
   54477.379066       0.000263       26.49826        0.85642        1.00000     0
   54477.379575       0.000246       28.08318        0.91164        1.00000     0
   54477.380072       0.000252       27.68070        0.89429        1.00000     0
   54477.380793       0.000469       27.64503        0.65843        0.99860     0
   54477.440567       0.000272       26.87980        0.87691        0.99572     0
   54477.441079       0.000240       28.13411        0.90848        1.00000     0
   54477.441577       0.000258       27.11287        0.87521        1.00000     0
   54477.442095       0.000260       26.66155        0.85779        1.00000     0
   54477.442622       0.000266       26.22098        0.83905        1.00000     0
   54477.443148       0.000260       26.31287        0.85633        1.00000     0
   54477.443669       0.000260       26.72828        0.86006        1.00000     0
   54477.444170       0.000240       28.95777        0.93005        1.00000     0
   54477.444650       0.000240       29.49726        0.94301        1.00000     0
   54477.445139       0.000249       27.96625        0.89817        1.00000     0
   54477.445660       0.000272       25.87630        0.83676        1.00000     0
   54477.446169       0.000237       29.30491        0.94313        1.00000     0
   54477.446658       0.000252       27.59229        0.88538        1.00000     0
   54477.447159       0.000249       27.79192        0.90138        1.00000     0
   54477.447671       0.000263       28.38175        0.88646        0.99432     0
   54477.507243       0.000292       28.55448        0.95349        0.98674     0
   54477.507769       0.000234       29.93702        0.96680        1.00000     0
   54477.508273       0.000269       27.48697        0.89937        1.00000     0
   54477.508820       0.000278       27.02447        0.87833        1.00000     0
   54477.509375       0.000278       26.25442        0.86317        1.00000     0
   54477.509928       0.000275       26.79238        0.88132        1.00000     0
   54477.510480       0.000278       27.00903        0.88238        1.00000     0
   54477.511033       0.000275       27.28734        0.87426        1.00000     0
   54477.511597       0.000289       26.13116        0.84337        1.00000     0
   54477.512173       0.000286       26.05966        0.84311        1.00000     0
   54477.512755       0.000295       26.21440        0.83852        1.00000     0
   54477.513322       0.000272       27.31919        0.88102        1.00000     0
   54477.513895       0.000301       25.11701        0.81779        1.00000     0
   54477.514734       0.000538       25.81185        0.61626        1.00000     0