/*
**
**  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
   57140.242706       0.000194       37.26068        1.19401        1.00000     0
   57140.243114       0.000214       35.45576        1.15676        1.00000     0
   57140.243531       0.000203       35.51545        1.13162        1.00000     0
   57140.243927       0.000194       36.39556        1.17150        1.00000     0
   57140.244312       0.000191       36.96221        1.18526        1.00000     0
   57140.244697       0.000194       36.89629        1.17530        1.00000     0
   57140.245079       0.000188       38.04445        1.21499        1.00000     0
   57140.245446       0.000179       39.94822        1.27382        1.00000     0
   57140.245820       0.000194       36.82788        1.17134        1.00000     0
   57140.246193       0.000179       39.78203        1.27123        1.00000     0
   57140.246558       0.000185       38.30162        1.23072        1.00000     0
   57140.246937       0.000194       36.55611        1.18157        1.00000     0
   57140.247327       0.000197       35.88694        1.16629        1.00000     0
   57140.247724       0.000200       35.85201        1.15019        1.00000     0
   57140.248114       0.000191       36.52829        1.18419        1.00000     0
   57140.248499       0.000194       37.22021        1.19065        1.00000     0
   57140.248890       0.000197       36.10435        1.17016        1.00000     0
   57140.249280       0.000194       36.46238        1.17523        1.00000     0
   57140.249680       0.000205       34.81240        1.12493        1.00000     0
   57140.250082       0.000197       36.48859        1.17242        1.00000     0
   57140.250470       0.000191       36.77826        1.18732        1.00000     0
   57140.250852       0.000191       37.44957        1.20577        1.00000     0
   57140.251228       0.000185       37.90254        1.21987        1.00000     0
   57140.251601       0.000188       37.73773        1.20861        1.00000     0
   57140.251980       0.000191       37.31094        1.19278        1.00000     0
   57140.252359       0.000188       38.37877        1.21752        1.00000     0
   57140.252747       0.000200       35.84610        1.15354        1.00000     0
   57140.253137       0.000191       37.16169        1.18587        1.00000     0
   57140.253522       0.000194       36.61952        1.17577        1.00000     0
   57140.253924       0.000208       34.59391        1.10814        1.00000     0