Best track information for SPA 2004 200413 IVY
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2004022100         172.20         -15.40         1004.0           20.0
     2004022106         172.00         -15.80         1004.0           20.0
     2004022112         172.20         -16.10         1004.0           20.0
     2004022118         172.70         -16.40         1002.0           25.0
     2004022200         173.30         -16.30         1000.0           30.0
     2004022206         173.80         -16.10         1002.0           25.0
     2004022212         173.80         -15.50         1000.0           30.0
     2004022218         173.30         -15.10          997.0           35.0
     2004022300         172.50         -14.70          994.0           40.0
     2004022306         171.70         -14.30          991.0           45.0
     2004022312         171.00         -13.90          984.0           55.0
     2004022318         170.30         -13.60          972.0           70.0
     2004022400         169.60         -13.40          967.0           75.0
     2004022406         169.10         -13.70          967.0           75.0
     2004022412         168.70         -14.00          954.0           90.0
     2004022418         168.30         -14.40          954.0           85.0
     2004022500         167.90         -14.90          958.0           85.0
     2004022506         167.70         -15.40          954.0           90.0
     2004022512         167.70         -15.90          949.0           95.0
     2004022518         167.80         -16.40          938.0          105.0
     2004022600         168.00         -17.00          938.0          105.0
     2004022606         168.30         -17.70          944.0          100.0
     2004022612         168.60         -18.60          944.0          100.0
     2004022618         168.90         -19.30          938.0          105.0
     2004022700         169.10         -20.10          944.0          100.0
     2004022706         169.40         -21.30          944.0          100.0
     2004022712         169.90         -22.60          944.0          100.0
     2004022718         170.70         -24.30          944.0          100.0
     2004022800         171.90         -26.30          954.0           90.0
     2004022806         173.10         -28.70          958.0           85.0
     2004022812         174.70         -31.10          967.0           75.0
     2004022818         176.90         -34.40          984.0           55.0
     2004022900         179.00         -37.10          987.0           50.0
     2004022906         181.80         -40.30          991.0           45.0