Samos 3とは 意味・読み方・使い方

Samos 3 was an American reconnaissance satellite which was lost in a launch failure in 1961. It was an early electro-optical reconnaissance spacecraft, meaning that it transmitted images to receiving stations on Earth rather than returning them in a film capsule, and was to have been operated as part of the Samos programme. Samos 3 was the only Samos-E2 spacecraft to be launched. Samos-E2 satellites were based around an Agena-B, and carried a camera with a focal length of 91 centimetres (36 in), and a resolution of 6 metres (20 ft).