Best track information for NWP 2001 200121 VIPA
      Date&time      longitude       latitude  Min SLP (hPa)   Vmax (knots)
     2001091600         138.00          20.10         1002.0           25.0
     2001091606         138.90          20.60         1002.0           25.0
     2001091612         139.60          21.10         1002.0           25.0
     2001091618         140.00          22.00         1002.0           25.0
     2001091700         140.10          22.40         1002.0           25.0
     2001091706         140.10          22.90         1000.0           30.0
     2001091712         140.00          23.70         1000.0           30.0
     2001091718         139.80          24.30          997.0           35.0
     2001091800         139.40          25.10          997.0           35.0
     2001091806         138.90          26.40          994.0           40.0
     2001091812         138.50          27.50          991.0           50.0
     2001091818         138.20          28.90          984.0           55.0
     2001091900         138.10          30.00          976.0           65.0
     2001091906         138.30          30.90          976.0           65.0
     2001091912         138.90          31.80          976.0           65.0
     2001091918         139.60          32.60          976.0           65.0
     2001092000         140.60          33.40          972.0           70.0
     2001092006         142.10          34.20          972.0           70.0
     2001092012         143.70          34.90          972.0           70.0
     2001092018         145.80          36.10          967.0           75.0
     2001092100         148.50          37.70          967.0           75.0
     2001092106         152.40          40.10          972.0           70.0
     2001092112         157.40          42.60          976.0           65.0