/*
**
**  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
   57551.281534       0.000191       32.96152        1.06305        1.00000     0       30.35355        0.95986       29.90374        0.96443        0.44980        0.09379
   57551.281922       0.000197       32.84325        1.04335        1.00000     0       29.69648        0.93535       29.50667        0.93728        0.18981        0.06002
   57551.282309       0.000191       33.49240        1.06352        1.00000     0       30.56602        0.96322       30.39001        0.96500        0.17601        0.05867
   57551.282685       0.000185       34.06518        1.09619        1.00000     0       31.33340        0.99035       30.90987        0.99466        0.42352        0.09242
   57551.283053       0.000182       34.99411        1.11022        1.00000     0       31.86255        1.00658       31.76011        1.00762        0.10244        0.04581
   57551.283415       0.000179       35.19247        1.12878        1.00000     0       32.27953        1.02128       31.94643        1.02467        0.33309        0.08327
   57551.283794       0.000200       32.37914        1.03114        1.00000     0       29.41127        0.92408       29.11197        0.92710        0.29930        0.07483
   57551.284190       0.000197       32.14151        1.02916        1.00000     0       29.43133        0.93117       29.16559        0.93387        0.26574        0.07102
   57551.284578       0.000191       33.69265        1.06991        1.00000     0       30.86956        0.96799       30.57621        0.97095        0.29335        0.07574
   57551.284957       0.000188       33.93683        1.09230        1.00000     0       31.00545        0.97755       30.52887        0.98238        0.47658        0.09728
   57551.285342       0.000197       32.82624        1.04662        1.00000     0       29.63756        0.93442       29.39080        0.93693        0.24676        0.06844
   57551.285718       0.000179       35.89705        1.13842        1.00000     0       32.57034        1.02587       32.40379        1.02756        0.16655        0.05888
   57551.286094       0.000197       32.69510        1.03788        1.00000     0       29.93217        0.93906       29.66643        0.94174        0.26574        0.07102
   57551.286470       0.000179       35.74431        1.14146        1.00000     0       32.34415        1.02230       32.09433        1.02484        0.24982        0.07212
   57551.286838       0.000188       34.20668        1.09352        1.00000     0       31.09791        0.97901       30.74047        0.98262        0.35744        0.08425
   57551.287214       0.000188       33.92525        1.08732        1.00000     0       30.78970        0.97414       30.49184        0.97717        0.29786        0.07691
   57551.287596       0.000194       33.43313        1.06562        1.00000     0       29.99021        0.94695       29.77830        0.94911        0.21191        0.06389
   57551.287975       0.000185       34.65305        1.10244        1.00000     0       31.30209        0.98986       31.16092        0.99130        0.14117        0.05336
   57551.288348       0.000188       34.09193        1.08936        1.00000     0       30.91298        0.97609       30.63498        0.97892        0.27800        0.07430
   57551.288730       0.000194       32.87369        1.05679        1.00000     0       29.99021        0.94695       29.58565        0.95106        0.40456        0.08828
   57551.289242       0.000318       32.78260        0.82490        0.99167     0       29.65953        0.73804       29.41105        0.74003        0.24848        0.05422