/*
**
**  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
   55254.194099       0.000113       60.72908        1.93323        1.00000     0
   55254.194324       0.000113       63.72864        2.01487        1.00000     0
   55254.194550       0.000113       65.97401        2.08947        1.00000     0
   55254.194776       0.000113       63.08371        2.02282        1.00000     0
   55254.195002       0.000113       62.32260        2.00325        1.00000     0
   55254.195227       0.000113       62.17663        1.98635        1.00000     0
   55254.195456       0.000116       60.61256        1.94061        1.00000     0
   55254.195690       0.000119       59.44678        1.89527        1.00000     0
   55254.195919       0.000110       63.36292        2.03006        1.00000     0
   55254.196142       0.000113       61.10139        1.98000        1.00000     0
   55254.196370       0.000116       61.28744        1.95231        1.00000     0
   55254.196599       0.000113       63.60838        1.99733        1.00000     0
   55254.196824       0.000113       62.45473        1.99976        1.00000     0
   55254.197056       0.000119       59.11538        1.88796        1.00000     0
   55254.197296       0.000122       57.97731        1.86169        1.00000     0
   55254.197528       0.000110       63.92105        2.03732        1.00000     0
   55254.197747       0.000110       63.34765        2.03385        1.00000     0
   55254.197973       0.000116       59.74836        1.92629        1.00000     0
   55254.198202       0.000113       63.91302        2.00529        1.00000     0
   55254.198425       0.000110       63.76072        2.04162        1.00000     0
   55254.198650       0.000116       60.13371        1.93904        1.00000     0
   55254.198876       0.000110       63.96398        2.04378        1.00000     0
   55254.199099       0.000113       62.33353        1.99388        1.00000     0
   55254.199322       0.000110       63.25069        2.03227        1.00000     0
   55254.199556       0.000124       55.97807        1.81075        1.00000     0
   55254.199848       0.000168       66.66617        1.68717        0.99758     0
   55254.262912       0.000182       55.32285        1.79514        0.98420     0
   55254.263277       0.000182       48.82076        1.60600        1.00000     0
   55254.263630       0.000171       51.42415        1.65297        1.00000     0
   55254.263974       0.000174       51.36882        1.64797        1.00000     0
   55254.264345       0.000197       47.16531        1.52385        1.00000     0
   55254.264732       0.000191       47.54276        1.54207        1.00000     0
   55254.265117       0.000194       46.80056        1.51360        1.00000     0
   55254.265493       0.000182       49.56875        1.59758        1.00000     0
   55254.265844       0.000168       54.64407        1.76788        1.00000     0
   55254.266194       0.000182       49.71554        1.61709        1.00000     0
   55254.266564       0.000188       47.79034        1.54266        1.00000     0
   55254.266934       0.000182       50.29662        1.63511        1.00000     0
   55254.267293       0.000177       51.58423        1.65802        1.00000     0
   55254.267646       0.000177       50.10840        1.63759        1.00000     0
   55254.268005       0.000182       50.00647        1.59842        1.00000     0
   55254.268372       0.000185       47.60863        1.54253        1.00000     0
   55254.268743       0.000185       48.49008        1.57233        1.00000     0
   55254.269125       0.000197       46.56008        1.50840        1.00000     0
   55254.269507       0.000185       49.11151        1.58967        1.00000     0
   55254.269880       0.000188       47.43300        1.55354        1.00000     0
   55254.270250       0.000182       50.39583        1.64296        1.00000     0
   55254.270609       0.000177       51.43760        1.66608        1.00000     0
   55254.270959       0.000174       49.77883        1.62441        1.00000     0
   55254.271327       0.000194       50.55984        1.54894        1.00000     0