/*
**
**  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
   55586.244601       0.000307       11.87055        0.86354        0.99057     0        3.83496        0.27050        3.74778        0.27128        0.08717        0.02055
   55586.245182       0.000275       13.47949        0.97176        0.96842     0        4.39863        0.30949        4.31019        0.31028        0.08844        0.02211
   55586.245749       0.000292       11.14192        0.80976        0.98020     0        4.04714        0.28618        3.94955        0.28705        0.09759        0.02239
   55586.246334       0.000292       11.48731        0.82203        0.98020     0        4.06738        0.28689        4.01601        0.28735        0.05137        0.01624
   55586.246901       0.000275       12.31777        0.88396        0.96842     0        4.37685        0.30872        4.31052        0.30931        0.06633        0.01915
   55586.247451       0.000275       11.77978        0.85514        1.00000     0        4.23864        0.29897        4.13158        0.29993        0.10706        0.02394
   55586.248055       0.000324       11.12539        0.79718        0.91073     0        3.94767        0.27845        3.89283        0.27894        0.05484        0.01653
   55586.248657       0.000278       11.57317        0.84140        0.98958     0        4.23864        0.29897        4.12623        0.29997        0.11241        0.02453
   55586.249184       0.000249       13.09731        0.94912        0.98837     0        4.71373        0.33331        4.61203        0.33422        0.10170        0.02467
   55586.249708       0.000275       11.69523        0.84780        0.98947     0        4.28373        0.30215        4.18094        0.30307        0.10279        0.02358
   55586.250260       0.000278       11.50549        0.82827        1.00000     0        4.21535        0.29659        4.13060        0.29735        0.08475        0.02119
   55586.250784       0.000246       13.00083        0.93811        1.00000     0        4.71373        0.33331        4.62997        0.33406        0.08376        0.02238
   55586.251279       0.000249       12.77575        0.95099        0.97674     0        4.76984        0.33728        4.55796        0.33918        0.21188        0.03581
   55586.251785       0.000258       12.58205        0.91609        0.97753     0        4.62839        0.32646        4.49980        0.32761        0.12859        0.02742
   55586.252335       0.000292       11.14901        0.79943        0.99010     0        4.06677        0.28543        3.99049        0.28611        0.07628        0.01969
   55586.252902       0.000275       11.74720        0.84881        0.97895     0        4.30825        0.30464        4.22623        0.30537        0.08202        0.02118
   55586.253434       0.000258       12.52253        0.89703        1.00000     0        4.61442        0.32229        4.51158        0.32320        0.10285        0.02424
   55586.253932       0.000240       14.13011        1.01100        0.95181     0        5.09709        0.35952        5.03272        0.36010        0.06437        0.02036
   55586.254430       0.000258       12.57349        0.91538        0.98876     0        4.57580        0.32275        4.44867        0.32389        0.12713        0.02710
   55586.255101       0.000414       12.72080        0.72332        0.98601     0        4.60341        0.25574        4.50964        0.25641        0.09377        0.01839