Best track information for SIO 1999 200001 ILSA
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     1999121000          97.40          -9.40            0.0           20.0
     1999121006          97.90          -9.60            0.0           20.0
     1999121012          98.30          -9.80            0.0           25.0
     1999121018          99.00         -10.10            0.0           30.0
     1999121100          99.60         -10.50            0.0           30.0
     1999121106         100.20         -10.80            0.0           35.0
     1999121112         100.90         -11.20            0.0           40.0
     1999121118         101.50         -11.60            0.0           40.0
     1999121200         102.00         -11.90            0.0           40.0
     1999121206         102.50         -12.10            0.0           45.0
     1999121212         102.80         -12.30            0.0           45.0
     1999121218         103.50         -12.40            0.0           45.0
     1999121300         104.20         -12.40            0.0           50.0
     1999121306         105.00         -12.40            0.0           55.0
     1999121312         105.80         -12.40            0.0           55.0
     1999121318         106.60         -12.40            0.0           55.0
     1999121400         107.40         -12.20            0.0           55.0
     1999121406         108.40         -12.10            0.0           55.0
     1999121412         109.20         -12.00            0.0           55.0
     1999121418         110.10         -12.00            0.0           55.0
     1999121500         111.00         -12.10            0.0           55.0
     1999121506         112.40         -12.50            0.0           60.0
     1999121512         113.40         -12.90            0.0           60.0
     1999121518         114.50         -13.70            0.0           60.0
     1999121600         116.00         -15.00            0.0           60.0
     1999121606         117.30         -16.10            0.0           50.0
     1999121612         118.50         -17.30            0.0           45.0
     1999121618         119.30         -18.40            0.0           50.0
     1999121700         120.00         -19.20            0.0           55.0
     1999121706         120.80         -20.00            0.0           35.0
     1999121712         121.80         -20.80            0.0           30.0