/*
**
**  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
   55667.203738       0.000451       14.00334        0.45402        1.00000     0       12.85474        0.40630       12.63069        0.40954        0.22405        0.05140
   55667.204627       0.000437       14.40107        0.46261        1.00000     0       13.34673        0.42080       13.17617        0.42326        0.17056        0.04558
   55667.205521       0.000457       13.84771        0.44686        1.00000     0       12.67934        0.40096       12.50470        0.40348        0.17464        0.04509
   55667.206432       0.000454       13.93743        0.45001        1.00000     0       12.81114        0.40432       12.61195        0.40719        0.19919        0.04831
   55667.207323       0.000437       14.52299        0.46728        1.00000     0       13.30693        0.42017       13.13637        0.42264        0.17056        0.04558
   55667.208223       0.000463       13.70757        0.44527        1.00000     0       12.55841        0.39654       12.31697        0.40002        0.24144        0.05269
   55667.209143       0.000457       13.99941        0.44909        1.00000     0       12.69202        0.40116       12.56395        0.40301        0.12807        0.03861
   55667.210049       0.000448       14.09338        0.45523        1.00000     0       12.93767        0.40892       12.74778        0.41167        0.18989        0.04747
   55667.210946       0.000448       14.26856        0.45645        1.00000     0       13.04107        0.41055       12.89865        0.41260        0.14242        0.04111
   55667.211855       0.000460       13.53608        0.43988        1.00000     0       12.62480        0.39883       12.38184        0.40234        0.24296        0.05302
   55667.212746       0.000431       14.51502        0.47083        1.00000     0       13.45865        0.42539       13.22408        0.42878        0.23458        0.05382
   55667.213640       0.000463       13.68083        0.44150        0.99375     0       12.66260        0.39943       12.46591        0.40227        0.19668        0.04770
   55667.214554       0.000451       13.88989        0.45075        1.00000     0       12.86758        0.40650       12.63174        0.40991        0.23584        0.05274
   55667.215457       0.000451       13.95878        0.44965        1.00000     0       12.91895        0.40731       12.73028        0.41004        0.18867        0.04717
   55667.216620       0.000712       14.09798        0.36025        1.00000     0       13.02983        0.32575       12.83540        0.32797        0.19443        0.03813