Thus, a camera could be pointed at some point on Earth every time the satellite rotated along its axis. The satellite spin axis was rotated using the magnetic attitude control system into an alignment perpendicular to the orbital plane, and tangent to, the Earth's surface. This configuration proved successful and was eventually adopted for the ESSA operational series of civilian weather satellites. The first photomosaic of the entire world's cloud-cover was achieved via a composite of 450 photos taken on February 13, 1965. First complete view of the world's weather.
Photo shows a rainy weekend over most of the United States.