/*
**
**  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)
**   RawRate                  - Raw source count rate (cts/s)
**   RawError                 - 1 sigma error in the raw count rate (cts/s)
**   NetRate                  - Background subtracted count rate (cts/s)
**   NetError                 - 1 sigma error in the background subtracted count rate (cts/s)
**   BackRate                 - Background count rate (cts/s)
**   BackError                - 1 sigma error in the background count rate (cts/s)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode        RawRate       RawError        NetRate       NetError       BackRate      BackError
   55612.200409       0.000781        2.74124        0.19789        0.95185     0        1.55902        0.11024        1.53089        0.11050        0.02813        0.00752
   55612.202021       0.000830        2.55656        0.18479        0.96167     0        1.45169        0.10265        1.42363        0.10291        0.02806        0.00725
   55612.203817       0.000966        2.20853        0.15790        0.97006     0        1.24899        0.08788        1.23146        0.08804        0.01753        0.00529
   55612.205713       0.000929        2.28407        0.16487        0.96262     0        1.29666        0.09169        1.27326        0.09190        0.02339        0.00625
   55612.207675       0.001033        2.08290        0.14923        0.95798     0        1.17154        0.08284        1.15795        0.08296        0.01359        0.00453
   55612.210241       0.001534        2.24261        0.12810        0.95283     0        1.26151        0.07074        1.24106        0.07089        0.02045        0.00457