/*
**
**  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
   55180.237207       0.000122       51.14310        1.63863        1.00000     0
   55180.237450       0.000122       52.24467        1.66182        1.00000     0
   55180.237690       0.000119       52.25134        1.66634        1.00000     0
   55180.237928       0.000119       53.62139        1.70632        1.00000     0
   55180.238162       0.000116       54.24335        1.72561        1.00000     0
   55180.238402       0.000124       49.80050        1.59106        1.00000     0
   55180.238645       0.000119       52.43398        1.67657        1.00000     0
   55180.238891       0.000127       50.27626        1.59952        1.00000     0
   55180.239134       0.000116       54.67658        1.73133        1.00000     0
   55180.239377       0.000127       49.23698        1.56690        1.00000     0
   55180.239626       0.000122       52.73020        1.67020        1.00000     0
   55180.239869       0.000122       50.84865        1.65470        1.00000     0
   55180.240112       0.000122       51.30111        1.63059        1.00000     0
   55180.240352       0.000119       53.20335        1.69164        1.00000     0
   55180.240593       0.000122       50.78701        1.63053        1.00000     0
   55180.240836       0.000122       51.11299        1.64681        1.00000     0
   55180.241079       0.000122       51.81213        1.65158        1.00000     0
   55180.241330       0.000130       48.44920        1.53988        1.00000     0
   55180.241594       0.000133       47.44158        1.49469        1.00000     0
   55180.241848       0.000122       50.83686        1.62667        1.00000     0
   55180.242094       0.000124       50.27795        1.59509        1.00000     0
   55180.242340       0.000122       51.76976        1.63642        1.00000     0
   55180.242583       0.000122       51.77803        1.63774        1.00000     0
   55180.242823       0.000119       53.26270        1.69167        1.00000     0
   55180.243061       0.000119       53.14574        1.69123        1.00000     0
   55180.243304       0.000124       50.36615        1.59566        1.00000     0
   55180.243553       0.000124       49.68393        1.58688        1.00000     0
   55180.243796       0.000119       52.68608        1.67341        1.00000     0
   55180.244042       0.000127       48.92477        1.56012        1.00000     0
   55180.244285       0.000116       53.59295        1.72556        1.00000     0
   55180.244522       0.000122       52.35174        1.66134        1.00000     0
   55180.244765       0.000122       51.30099        1.63205        1.00000     0
   55180.245011       0.000124       49.83573        1.58930        1.00000     0
   55180.245257       0.000122       50.87971        1.62614        1.00000     0
   55180.245497       0.000119       52.34482        1.67173        1.00000     0
   55180.245737       0.000122       51.54479        1.64049        1.00000     0
   55180.245980       0.000122       51.26506        1.64298        1.00000     0
   55180.246229       0.000127       49.41920        1.56894        1.00000     0
   55180.246484       0.000127       49.08096        1.56373        1.00000     0
   55180.246733       0.000122       50.92089        1.63276        1.00000     0
   55180.246973       0.000119       52.43615        1.68098        1.00000     0
   55180.247210       0.000119       52.89260        1.68440        1.00000     0
   55180.247450       0.000122       50.71040        1.62830        1.00000     0
   55180.247690       0.000119       52.51085        1.66820        1.00000     0
   55180.247936       0.000127       49.58507        1.56703        1.00000     0
   55180.248188       0.000124       50.08955        1.60036        1.00000     0
   55180.248451       0.000139       48.79125        1.49062        1.00000     0