Alt.Aperturer 0 (m)FWHM(") 0 (") 0 (sec) 4 kmCFHT 3.8m0.180.730.0036 35 km2.4 m~2500.048~600~5 35km10 m~2500.012~600~5 h (km)P (mbars)T (K) (gm m.
Why A Long-Duration Balloon?