/*
**
**  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
   54218.302173       0.000362       17.74830        0.57212        1.00000     0
   54218.302882       0.000347       18.58358        0.59643        1.00000     0
   54218.303579       0.000350       18.43643        0.59445        1.00000     0
   54218.304302       0.000373       17.39220        0.55982        1.00000     0
   54218.305040       0.000365       17.54175        0.56865        1.00000     0
   54218.305772       0.000367       17.44755        0.56299        1.00000     0
   54218.306522       0.000382       17.04798        0.54390        1.00000     0
   54218.307283       0.000379       17.01922        0.54492        1.00000     0
   54218.308020       0.000359       18.04577        0.57779        1.00000     0
   54218.308767       0.000388       16.49474        0.53325        1.00000     0
   54218.309537       0.000382       16.76600        0.54381        1.00000     0
   54218.310283       0.000365       17.61627        0.57153        1.00000     0
   54218.311007       0.000359       17.96359        0.57683        1.00000     0
   54218.311718       0.000353       18.40728        0.59497        1.00000     0
   54218.312436       0.000365       17.70646        0.57382        1.00000     0
   54218.313162       0.000362       17.97729        0.57933        1.00000     0
   54218.313889       0.000365       17.84056        0.57417        1.00000     0
   54218.314621       0.000367       17.75686        0.57167        1.00000     0
   54218.315332       0.000344       18.71908        0.60564        1.00000     0
   54218.316047       0.000370       17.52839        0.56882        1.00000     0
   54218.316785       0.000367       17.72821        0.57097        1.00000     0
   54218.317520       0.000367       17.69333        0.57080        1.00000     0
   54218.318264       0.000376       17.21717        0.56052        1.00000     0
   54218.319025       0.000385       16.84285        0.54802        1.00000     0
   54218.319771       0.000362       18.01522        0.58352        1.00000     0
   54218.320830       0.000697       17.38787        0.40860        1.00000     0