/*
**
**  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
   55594.284582       0.000284        7.72733        0.56600        0.96939     0        4.21755        0.29823        4.15110        0.29884        0.06644        0.01918
   55594.285253       0.000388        7.64348        0.54999        0.92537     0        3.24734        0.22905        3.19220        0.22956        0.05515        0.01530
   55594.285971       0.000330        7.59615        0.55100        0.99123     0        3.54573        0.25072        3.46659        0.25145        0.07914        0.01919
   55594.286712       0.000411        6.55132        0.47120        0.93662     0        3.02760        0.21355        2.97618        0.21403        0.05142        0.01426
   55594.287484       0.000362        6.93561        0.50178        1.00000     0        3.22136        0.22722        3.14983        0.22788        0.07154        0.01735
   55594.288219       0.000373        6.96753        0.49955        0.97674     0        3.19580        0.22541        3.14988        0.22584        0.04592        0.01385
   55594.288957       0.000365        6.90873        0.49814        0.99206     0        3.20534        0.22665        3.15063        0.22716        0.05471        0.01517
   55594.289712       0.000391        6.58849        0.47202        0.97778     0        3.06571        0.21570        3.01789        0.21614        0.04782        0.01380
   55594.290447       0.000344        7.36853        0.53215        0.98319     0        3.42451        0.24215        3.36156        0.24273        0.06294        0.01682
   55594.291182       0.000391        6.71585        0.48278        0.96296     0        3.08206        0.21793        3.03755        0.21835        0.04451        0.01342
   55594.291920       0.000347        7.63139        0.54513        0.97500     0        3.47587        0.24396        3.42192        0.24446        0.05395        0.01557
   55594.292643       0.000376        7.06172        0.51152        0.95385     0        3.23119        0.22848        3.16331        0.22911        0.06787        0.01697
   55594.293393       0.000373        6.88882        0.49306        0.97674     0        3.17990        0.22485        3.14650        0.22516        0.03340        0.01181
   55594.294437       0.000671        7.03287        0.37824        0.95259     0        3.27242        0.17223        3.21053        0.17266        0.06188        0.01214