/*
**
**  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
   59974.212566       0.000240       34.63914        1.12513        1.00000     0
   59974.213023       0.000217       36.55095        1.18142        1.00000     0
   59974.213457       0.000217       37.65807        1.21397        1.00000     0
   59974.213920       0.000246       33.37470        1.07859        1.00000     0
   59974.214412       0.000246       33.04734        1.08578        1.00000     0
   59974.214898       0.000240       34.32051        1.11123        1.00000     0
   59974.215370       0.000231       35.13632        1.15210        1.00000     0
   59974.215850       0.000249       32.86178        1.06539        1.00000     0
   59974.216337       0.000237       34.28126        1.11108        1.00000     0
   59974.216814       0.000240       34.31604        1.10862        1.00000     0
   59974.217291       0.000237       34.13257        1.10486        1.00000     0
   59974.217760       0.000231       35.02617        1.13867        1.00000     0
   59974.218229       0.000237       34.86819        1.12296        1.00000     0
   59974.218695       0.000229       35.91570        1.14983        1.00000     0
   59974.219155       0.000231       35.02302        1.13545        1.00000     0
   59974.219621       0.000234       34.69885        1.13656        1.00000     0
   59974.220104       0.000249       32.45297        1.05191        1.00000     0
   59974.220590       0.000237       34.55585        1.12068        1.00000     0
   59974.221059       0.000231       35.83547        1.14971        1.00000     0
   59974.221519       0.000229       35.62555        1.15015        1.00000     0
   59974.221976       0.000229       35.50771        1.14517        1.00000     0
   59974.222558       0.000353       35.92857        0.92971        1.00000     0