/*
**
**  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
   55299.029267       0.000159       11.83846        0.86926        0.96364     0
   55299.029545       0.000119       12.14718        0.86592        1.00000     0
   55299.029826       0.000162       12.07398        0.74554        1.00000     0
   55299.030124       0.000136       11.08591        0.79226        0.97872     0
   55299.030384       0.000124       12.32579        0.88052        1.00000     0
   55299.030633       0.000124       12.40276        0.89592        1.00000     0
   55299.030897       0.000139       11.20349        0.80323        0.97917     0
   55299.031166       0.000130       12.10258        0.86496        1.00000     0
   55299.031417       0.000122       13.15286        0.93043        1.00000     0
   55299.031689       0.000150       10.74280        0.76938        0.98077     0
   55299.031967       0.000127       12.57684        0.88984        1.00000     0
   55299.032228       0.000133       11.72022        0.85972        1.00000     0
   55299.032497       0.000136       11.37852        0.81901        1.00000     0
   55299.032769       0.000136       11.43032        0.82736        1.00000     0
   55299.033041       0.000136       11.58117        0.83105        1.00000     0
   55299.033298       0.000122       12.73299        0.91864        1.00000     0
   55299.033622       0.000203       13.37726        0.72954        1.00000     0
   55299.033955       0.000130       11.77408        0.85227        1.00000     0
   55299.034212       0.000127       12.09549        0.87020        1.00000     0
   55299.034467       0.000127       12.13748        0.88462        0.97727     0
   55299.034730       0.000136       11.38657        0.81655        1.00000     0
   55299.035005       0.000139       11.16721        0.81084        1.00000     0
   55299.035277       0.000133       11.68648        0.84397        1.00000     0
   55299.035541       0.000130       11.63370        0.86198        1.00000     0
   55299.035789       0.000119       13.31957        0.95193        1.00000     0
   55299.036027       0.000119       12.98726        0.94297        1.00000     0
   55299.036273       0.000127       12.18173        0.87194        1.00000     0
   55299.036603       0.000203       12.10555        0.68674        0.98876     0