/*
**
**  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
   57751.239885       0.000292       21.44459        0.68643        1.00000     0       19.95395        0.62911       19.73409        0.63167        0.21987        0.05677
   57751.240446       0.000269       23.45242        0.74466        1.00000     0       21.67042        0.68323       21.55899        0.68453        0.11143        0.04212
   57751.240990       0.000275       22.75595        0.72773        1.00000     0       21.08768        0.66685       20.91626        0.66885        0.17142        0.05168
   57751.241560       0.000295       21.17269        0.68043        1.00000     0       19.67976        0.62171       19.43303        0.62458        0.24674        0.05984
   57751.242122       0.000266       23.64977        0.75509        1.00000     0       21.79709        0.68894       21.63618        0.69082        0.16092        0.05089
   57751.242654       0.000266       23.54982        0.75549        1.00000     0       21.77532        0.68860       21.55004        0.69122        0.22528        0.06021
   57751.243198       0.000278       22.57226        0.72547        1.00000     0       20.95149        0.66122       20.67390        0.66445        0.27758        0.06543
   57751.243768       0.000292       21.33126        0.68664        1.00000     0       19.85478        0.62755       19.59094        0.63062        0.26384        0.06219
   57751.244332       0.000272       23.35416        0.74458        1.00000     0       21.35464        0.67462       21.21289        0.67627        0.14174        0.04725
   57751.244879       0.000275       23.30652        0.73865        0.99713     0       21.48667        0.67410       21.33038        0.67591        0.15628        0.04942
   57751.308273       0.000278       22.51239        0.72205        0.99997     0       20.84775        0.65959       20.64940        0.66230        0.19834        0.05980
   57751.308820       0.000269       23.06186        0.73596        1.00000     0       21.62734        0.68255       21.45983        0.68483        0.16751        0.05584
   57751.309358       0.000269       23.10135        0.73872        1.00000     0       21.54118        0.68119       21.37366        0.68348        0.16751        0.05584
   57751.309914       0.000286       21.74030        0.69550        1.00000     0       20.31659        0.64119       20.12427        0.64380        0.19233        0.05799
   57751.310658       0.000457       23.17714        0.56746        0.99376     0       21.75389        0.52684       21.58853        0.52856        0.16536        0.04270