/*
**
**  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
   54974.159791       0.000356       17.64534        0.56440        1.00000     0       16.30354        0.51531       16.17145        0.51718        0.13209        0.04403
   54974.160480       0.000333       18.72975        0.60215        1.00000     0       17.43770        0.55115       17.23363        0.55405        0.20407        0.05660
   54974.161154       0.000341       18.42809        0.59271        1.00000     0       17.02832        0.53768       16.81414        0.54072        0.21418        0.05724
   54974.161845       0.000350       17.83903        0.57117        1.00000     0       16.62269        0.52461       16.45858        0.52694        0.16411        0.04948
   54974.162563       0.000367       17.00883        0.54939        1.00000     0       15.80582        0.49932       15.56417        0.50275        0.24165        0.05861
   54974.163275       0.000344       18.01034        0.57750        1.00000     0       16.85156        0.53263       16.68469        0.53500        0.16687        0.05031
   54974.163966       0.000347       18.27624        0.58405        1.00000     0       16.82799        0.53003       16.66251        0.53238        0.16548        0.04989
   54974.164803       0.000489       17.55921        0.48123        0.99789     0       16.36945        0.44097       16.17677        0.44330        0.19268        0.04542
   54974.226669       0.000330       19.11741        0.60985        0.99471     0       17.80794        0.56090       17.65160        0.56307        0.15634        0.04944
   54974.227343       0.000344       18.17599        0.58236        1.00000     0       16.95257        0.53422       16.75890        0.53691        0.19367        0.05371
   54974.228040       0.000353       17.51659        0.56335        1.00000     0       16.45360        0.51979       16.25016        0.52262        0.20344        0.05437
   54974.228738       0.000344       18.08241        0.58266        1.00000     0       16.85156        0.53263       16.62810        0.53574        0.22346        0.05770
   54974.229432       0.000350       17.87533        0.57529        1.00000     0       16.60613        0.52435       16.38636        0.52741        0.21977        0.05674
   54974.230109       0.000327       18.94272        0.61191        1.00000     0       17.74633        0.56091       17.47963        0.56463        0.26671        0.06469
   54974.230789       0.000353       17.63631        0.56431        1.00000     0       16.53570        0.52108       16.36133        0.52351        0.17438        0.05034
   54974.231544       0.000402       17.72709        0.53164        1.00000     0       16.67522        0.49024       16.44564        0.49321        0.22957        0.05411