/*
**
**  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
   55560.160847       0.000171       11.03865        0.65210        1.00000     0        9.98272        0.58220        9.87999        0.58371        0.10273        0.04194
   55560.161584       0.000567       11.20728        0.35916        1.00000     0       10.27220        0.32403       10.14335        0.32505        0.12885        0.02577
   55560.162713       0.000561       11.19573        0.36242        1.00000     0       10.31614        0.32639       10.12868        0.32788        0.18746        0.03124
   55560.163818       0.000544       11.57449        0.37358        1.00000     0       10.66669        0.33714       10.48937        0.33855        0.17732        0.03087
   55560.164889       0.000527       12.06005        0.38871        1.00000     0       11.00733        0.34808       10.84082        0.34941        0.16651        0.03040
   55560.165951       0.000535       11.83298        0.38024        1.00000     0       10.83966        0.34261       10.69769        0.34374        0.14197        0.02784
   55560.167042       0.000556       11.42230        0.36846        0.99479     0       10.49915        0.33185       10.32990        0.33319        0.16925        0.02992
   55560.168503       0.000906       11.67382        0.29251        0.99714     0       10.79640        0.26325       10.56336        0.26468        0.23304        0.02746