/*
**
**  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
   57727.247192       0.000483       12.78438        0.41831        1.00000     0       12.00802        0.37954       11.72740        0.38351        0.28061        0.05503
   57727.248164       0.000489       12.72289        0.40785        1.00000     0       11.84220        0.37467       11.73555        0.37619        0.10665        0.03373
   57727.249148       0.000495       12.42402        0.40598        1.00000     0       11.71541        0.37047       11.45190        0.37420        0.26351        0.05270
   57727.250114       0.000472       13.17735        0.42285        1.00000     0       12.31498        0.38905       12.18229        0.39093        0.13269        0.03830
   57727.251060       0.000475       13.09405        0.42153        1.00000     0       12.28875        0.38744       12.11291        0.38993        0.17584        0.04396
   57727.252027       0.000492       12.74621        0.40979        0.99412     0       11.92518        0.37598       11.76520        0.37824        0.15998        0.04131
   57727.252985       0.000466       13.47607        0.43545        1.00000     0       12.49285        0.39427       12.29134        0.39712        0.20151        0.04750
   57727.253928       0.000477       13.04063        0.42149        1.00000     0       12.15357        0.38414       11.96787        0.38677        0.18570        0.04504
   57727.254880       0.000475       13.21713        0.42672        1.00000     0       12.25211        0.38687       12.06527        0.38951        0.18683        0.04531
   57727.255794       0.000440       14.05414        0.45472        1.00000     0       13.16666        0.41657       12.96507        0.41943        0.20158        0.04889
   57727.256706       0.000472       13.40768        0.42963        1.00000     0       12.35185        0.38963       12.21916        0.39151        0.13269        0.03830
   57727.258100       0.000923       13.28950        0.30588        1.00000     0       12.25865        0.27746       12.11740        0.27890        0.14125        0.02825