/*
**
**  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
   59990.164087       0.000203       33.32351        1.08216        1.00000     0
   59990.164489       0.000200       33.98609        1.09274        1.00000     0
   59990.164891       0.000203       34.33913        1.10061        1.00000     0
   59990.165299       0.000205       33.36258        1.09180        1.00000     0
   59990.165704       0.000200       34.91116        1.11899        1.00000     0
   59990.166109       0.000205       33.22073        1.07641        1.00000     0
   59990.166512       0.000197       34.94845        1.12970        1.00000     0
   59990.166925       0.000217       31.98845        1.03701        1.00000     0
   59990.167359       0.000217       31.81637        1.03494        1.00000     0
   59990.167793       0.000217       32.42452        1.04518        1.00000     0
   59990.168207       0.000197       35.16511        1.13368        1.00000     0
   59990.168612       0.000208       33.48870        1.08087        1.00000     0
   59990.169029       0.000208       32.79052        1.07255        1.00000     0
   59990.169460       0.000223       31.00635        0.99843        1.00000     0
   59990.169900       0.000217       32.29079        1.04208        1.00000     0
   59990.170328       0.000211       32.93651        1.07005        1.00000     0
   59990.170748       0.000208       33.59872        1.07730        1.00000     0
   59990.171159       0.000203       33.99865        1.10139        1.00000     0
   59990.171581       0.000220       31.15387        1.01187        1.00000     0
   59990.172006       0.000205       33.44487        1.08783        1.00000     0
   59990.172417       0.000205       33.55464        1.08199        1.00000     0
   59990.172840       0.000217       31.44900        1.01605        1.00000     0
   59990.173265       0.000208       32.63280        1.06335        1.00000     0
   59990.173682       0.000208       33.26842        1.07746        1.00000     0
   59990.174101       0.000211       32.60365        1.05136        1.00000     0
   59990.174527       0.000214       32.41502        1.04709        1.00000     0
   59990.174952       0.000211       32.70207        1.06355        1.00000     0
   59990.175395       0.000231       30.10338        0.96699        1.00000     0
   59990.175843       0.000217       31.96858        1.02826        1.00000     0
   59990.176266       0.000205       33.37394        1.08839        1.00000     0
   59990.176775       0.000304       31.13316        0.86075        1.00000     0