Figure 6From: Q3Sat: quantum communications uplink to a 3U CubeSat—feasibility & designHistogram of days per year with certain Fried parameters \(r_{0}\), averaged over nine years starting in February 2008. Insufficient weather conditions (clouds, rain, winds) as well as technical problems lead to \(N=228\) instead of 365. The average daily \(r_{0}\) is 19.7 cm.Back to article page