/*
**
**  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
   56720.379009       0.000191       35.48019        1.13587        1.00000     0
   56720.379396       0.000197       35.34724        1.12147        1.00000     0
   56720.379790       0.000197       35.36677        1.12157        1.00000     0
   56720.380189       0.000203       33.65692        1.07098        1.00000     0
   56720.380577       0.000185       36.47829        1.16375        1.00000     0
   56720.380956       0.000194       35.39204        1.12148        1.00000     0
   56720.381347       0.000197       34.71141        1.10784        1.00000     0
   56720.381740       0.000197       34.52262        1.10105        1.00000     0
   56720.382119       0.000182       37.15367        1.18705        1.00000     0
   56720.382489       0.000188       36.14658        1.15030        1.00000     0
   56720.382869       0.000191       36.37453        1.14902        1.00000     0
   56720.383242       0.000182       37.07415        1.18545        1.00000     0
   56720.383615       0.000191       35.44965        1.13845        1.00000     0
   56720.384000       0.000194       35.79646        1.13723        1.00000     0
   56720.384388       0.000194       35.49479        1.13217        1.00000     0
   56720.384772       0.000191       35.80076        1.14083        1.00000     0
   56720.385157       0.000194       35.49055        1.12155        1.00000     0
   56720.385536       0.000185       37.07741        1.17121        1.00000     0
   56720.385907       0.000185       36.48771        1.16949        1.00000     0
   56720.386280       0.000188       36.54477        1.15869        1.00000     0
   56720.386662       0.000194       35.60637        1.13246        1.00000     0
   56720.387044       0.000188       36.83973        1.17793        1.00000     0
   56720.387429       0.000197       34.52033        1.10019        1.00000     0
   56720.387814       0.000188       36.83575        1.17220        1.00000     0
   56720.388193       0.000191       36.42261        1.15909        1.00000     0
   56720.388580       0.000197       34.84254        1.10817        1.00000     0
   56720.388968       0.000191       35.71071        1.14422        1.00000     0
   56720.389347       0.000188       36.16776        1.15684        1.00000     0
   56720.389903       0.000367       36.08415        0.82779        1.00000     0