/*
**
**  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)
**
**
**  Upper limits have an error listed as -1.00000.
**
*/
      BinCenter          BinHW           Rate      RateError        FracExp  Mode
   56641.268901       0.000139       46.26810        1.50166        1.00000     0
   56641.269175       0.000136       47.58557        1.52658        1.00000     0
   56641.269450       0.000139       47.03249        1.50207        1.00000     0
   56641.269722       0.000133       48.95024        1.56214        1.00000     0
   56641.269986       0.000130       49.25695        1.57756        1.00000     0
   56641.270246       0.000130       49.28626        1.58010        1.00000     0
   56641.270498       0.000122       54.17871        1.71689        1.00000     0
   56641.270750       0.000130       49.80339        1.58719        1.00000     0
   56641.271004       0.000124       51.40755        1.64678        1.00000     0
   56641.271265       0.000136       46.44106        1.49771        1.00000     0
   56641.271534       0.000133       47.97799        1.54477        1.00000     0
   56641.271794       0.000127       50.04677        1.60386        1.00000     0
   56641.272049       0.000127       49.46354        1.59899        1.00000     0
   56641.272309       0.000133       48.41990        1.53800        1.00000     0
   56641.272578       0.000136       46.98568        1.50668        1.00000     0
   56641.272844       0.000130       48.75558        1.55842        1.00000     0
   56641.273105       0.000130       49.75444        1.57692        1.00000     0
   56641.273371       0.000136       46.90886        1.50991        1.00000     0
   56641.273640       0.000133       47.64545        1.53714        1.00000     0
   56641.273906       0.000133       48.35592        1.54052        1.00000     0
   56641.274178       0.000139       46.09856        1.46993        1.00000     0
   56641.274456       0.000139       45.56913        1.46488        1.00000     0
   56641.274731       0.000136       46.81371        1.50963        1.00000     0
   56641.274991       0.000124       51.90015        1.65092        1.00000     0
   56641.275240       0.000124       51.24942        1.63480        1.00000     0
   56641.275501       0.000136       47.35069        1.52515        1.00000     0
   56641.275767       0.000130       48.82777        1.56721        1.00000     0
   56641.276027       0.000130       48.70403        1.56017        1.00000     0
   56641.276288       0.000130       48.99881        1.56947        1.00000     0
   56641.276554       0.000136       46.25256        1.49845        1.00000     0
   56641.276823       0.000133       47.64295        1.52870        1.00000     0
   56641.277092       0.000136       46.55851        1.49916        1.00000     0
   56641.277353       0.000124       51.11837        1.63633        1.00000     0
   56641.277610       0.000133       47.70809        1.53332        1.00000     0
   56641.277868       0.000124       51.09780        1.64057        1.00000     0
   56641.278232       0.000240       48.69213        1.15144        1.00000     0