/*
**
**  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
   54906.580916       0.000194       33.44364        1.05792        1.00000     0
   54906.581318       0.000208       31.06247        0.99416        1.00000     0
   54906.581740       0.000214       30.17966        0.96210        1.00000     0
   54906.582163       0.000208       31.74286        1.00836        1.00000     0
   54906.582568       0.000197       33.33521        1.05687        1.00000     0
   54906.582973       0.000208       31.71710        1.01009        1.00000     0
   54906.583387       0.000205       32.05379        1.02088        1.00000     0
   54906.583795       0.000203       32.43503        1.03614        1.00000     0
   54906.584226       0.000229       28.84602        0.91714        1.00000     0
   54906.584669       0.000214       30.30080        0.96751        1.00000     0
   54906.585088       0.000205       31.95582        1.02164        1.00000     0
   54906.585496       0.000203       32.46619        1.03933        1.00000     0
   54906.585907       0.000208       30.90899        0.98640        1.00000     0
   54906.586312       0.000197       32.95875        1.05550        1.00000     0
   54906.586709       0.000200       33.28979        1.06000        1.00000     0
   54906.587117       0.000208       31.28038        0.99447        1.00000     0
   54906.587530       0.000205       31.23959        1.00063        1.00000     0
   54906.587944       0.000208       30.90386        0.99144        1.00000     0
   54906.588355       0.000203       31.74183        1.01619        1.00000     0
   54906.588769       0.000211       30.46289        0.97056        1.00000     0
   54906.589185       0.000205       32.05252        1.02386        1.00000     0
   54906.589602       0.000211       30.95413        0.98318        1.00000     0
   54906.590007       0.000194       33.74273        1.07916        1.00000     0
   54906.590415       0.000214       30.46003        0.96945        1.00000     0
   54906.590823       0.000194       33.02316        1.05634        1.00000     0
   54906.591231       0.000214       29.98014        0.95861        1.00000     0
   54906.591648       0.000203       32.08595        1.02439        1.00000     0
   54906.592096       0.000246       33.68978        0.95440        1.00000     0