/*
**
**  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
   56751.248862       0.000304       20.91216        0.66868        1.00000     0       19.25110        0.60605       19.04498        0.60897        0.20612        0.05950
   56751.249470       0.000304       20.66976        0.66250        1.00000     0       19.11754        0.60395       18.92860        0.60663        0.18894        0.05697
   56751.250057       0.000284       21.97728        0.70449        1.00000     0       20.42175        0.64612       20.23772        0.64873        0.18403        0.05820
   56751.250636       0.000295       21.20254        0.67881        1.00000     0       19.71910        0.62233       19.52460        0.62509        0.19450        0.05864
   56751.251244       0.000312       20.00741        0.64189        1.00000     0       18.64215        0.58805       18.42505        0.59112        0.21709        0.06021
   56751.251840       0.000284       21.94356        0.70694        1.00000     0       20.48308        0.64709       20.20703        0.65100        0.27605        0.07128
   56751.252433       0.000310       20.03617        0.65195        1.00000     0       18.87254        0.59443       18.45115        0.60037        0.42139        0.08428
   56751.253040       0.000298       20.79469        0.67186        1.00000     0       19.43040        0.61475       19.15024        0.61873        0.28016        0.07004
   56751.253639       0.000301       20.73644        0.66596        1.00000     0       19.32063        0.61006       19.09518        0.61325        0.22544        0.06253
   56751.254247       0.000307       20.46800        0.65532        1.00000     0       19.06948        0.60033       18.84829        0.60346        0.22119        0.06135
   56751.254852       0.000298       21.11508        0.67686        0.99029     0       19.62090        0.62078       19.44408        0.62329        0.17682        0.05591
   56751.255454       0.000304       20.62093        0.66089        1.00000     0       19.21294        0.60545       18.98964        0.60861        0.22330        0.06193
   56751.256064       0.000307       20.22356        0.65753        1.00000     0       19.03168        0.59974       18.62333        0.60550        0.40835        0.08335
   56751.256669       0.000298       20.93636        0.67185        1.00000     0       19.48875        0.61567       19.27863        0.61865        0.21012        0.06066
   56751.257279       0.000312       20.13144        0.64439        1.00000     0       18.77199        0.59009       18.53820        0.59339        0.23379        0.06248
   56751.257899       0.000307       20.34988        0.65407        1.00000     0       18.97499        0.59885       18.73678        0.60222        0.23820        0.06366
   56751.258492       0.000286       21.63144        0.70368        1.00000     0       20.35712        0.64183       19.91990        0.64800        0.43722        0.08925
   56751.259062       0.000284       21.99708        0.70420        1.00000     0       20.42175        0.64612       20.25612        0.64847        0.16563        0.05521
   56751.259878       0.000532       21.02319        0.50380        1.00000     0       19.57607        0.46167       19.36043        0.46395        0.21564        0.04597