TROPOZ-2 Caravelle-116 1991/01/09-1991/02/01
  c2h2: C2H2 [pptv]
  c2h6: C2H6 [pptv]
  c3h8: C3H8 [pptv]
  co: CO [ppbv]
  noday:  NO [pptv] SZA<90
  noy: NOy [pptv]
  o3: O3 [ppbv]
  pan: PAN [pptv]