/*
**
**  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
   58551.862397       0.000122       51.55215        1.65685        1.00000     0
   58551.862634       0.000116       55.28004        1.76876        1.00000     0
   58551.862866       0.000116       54.89198        1.74557        1.00000     0
   58551.863097       0.000116       54.69065        1.74366        1.00000     0
   58551.863326       0.000113       57.64431        1.81461        1.00000     0
   58551.863557       0.000119       53.39835        1.68727        1.00000     0
   58551.863786       0.000110       57.04899        1.82053        1.00000     0
   58551.864008       0.000113       55.53003        1.76681        1.00000     0
   58551.864237       0.000116       53.93397        1.71452        1.00000     0
   58551.864471       0.000119       52.70480        1.67762        1.00000     0
   58551.864706       0.000116       54.39987        1.72546        1.00000     0
   58551.864943       0.000122       51.80985        1.64774        1.00000     0
   58551.865180       0.000116       55.33294        1.74764        1.00000     0
   58551.865412       0.000116       53.74127        1.71392        1.00000     0
   58551.865640       0.000113       55.76060        1.76547        1.00000     0
   58551.865866       0.000113       55.60677        1.77046        1.00000     0
   58551.866103       0.000124       50.67525        1.60842        1.00000     0
   58551.866346       0.000119       51.97013        1.67786        1.00000     0
   58551.866584       0.000119       52.98866        1.67854        1.00000     0
   58551.866818       0.000116       54.68983        1.72638        1.00000     0
   58551.867055       0.000122       51.21284        1.63623        1.00000     0
   58551.867290       0.000113       55.35169        1.76276        1.00000     0
   58551.867507       0.000104       60.07187        1.91000        1.00000     0
   58551.867727       0.000116       54.91707        1.73113        1.00000     0
   58551.867961       0.000119       52.65214        1.67679        1.00000     0
   58551.868190       0.000110       57.80569        1.82219        1.00000     0
   58551.868418       0.000119       52.77779        1.68109        1.00000     0
   58551.868653       0.000116       54.40139        1.73150        1.00000     0
   58551.868887       0.000119       52.35645        1.66859        1.00000     0
   58551.869124       0.000119       52.49346        1.67429        1.00000     0
   58551.869350       0.000107       58.22693        1.85621        1.00000     0
   58551.869581       0.000124       50.78652        1.61128        1.00000     0
   58551.869824       0.000119       52.91520        1.68091        1.00000     0
   58551.870056       0.000113       54.78888        1.75889        1.00000     0
   58551.870279       0.000110       57.53488        1.81925        1.00000     0
   58551.870502       0.000113       55.57301        1.76623        1.00000     0
   58551.870733       0.000119       53.49555        1.69581        1.00000     0
   58551.870962       0.000110       56.91019        1.80948        1.00000     0
   58551.871190       0.000119       52.32816        1.68230        1.00000     0
   58551.871430       0.000122       52.08751        1.64993        1.00000     0
   58551.871665       0.000113       55.19675        1.76156        1.00000     0
   58551.871893       0.000116       53.73106        1.71859        1.00000     0
   58551.872125       0.000116       53.87058        1.72488        1.00000     0
   58551.872362       0.000122       51.93214        1.65585        1.00000     0
   58551.872591       0.000107       58.39923        1.85236        1.00000     0
   58551.872813       0.000116       53.97768        1.72603        1.00000     0
   58551.873045       0.000116       53.94742        1.72200        1.00000     0
   58551.873276       0.000116       53.87078        1.71837        1.00000     0
   58551.873508       0.000116       54.10767        1.71847        1.00000     0
   58551.873734       0.000110       56.54861        1.81396        1.00000     0
   58551.873954       0.000110       56.82226        1.81699        1.00000     0
   58551.874182       0.000119       55.68567        1.72719        1.00000     0