Ozone determinations by lunar rocket photometry

Atmospheric ozone number densities have been determined over the altitude range 30–75 km by measuring the absorption of lunar u.v. radiation in a number of wavelength bands between 2400 Å and 2900 Å. The measurements were made from rockets fired at night at times close to full Moon and show significant variations in ozone densities particularly at the higher altitudes. Comparison with other observations indicates that above 60 km the ozone densities at night are markedly greater than they are during the day.