"Level #20 of flight 170331a"
20170331
  0   48.03325   16.30388     3770.9   20170331 093100  A        0.0      0.0
  1   48.05191   16.38674     3770.9   20170331 093140  I        9.3      0.0
  2   48.07056   16.46959     3770.9   20170331 093220  I        9.3      0.0
  3   48.08922   16.55245     3770.9   20170331 093300   W        9.3      0.0