NASA engineers have created a video in which clearly demonstrated the orbital constellation of satellites location observing the planet. A video showing 18 satellites orbiting the Earth rotating on February 16, 2015 year from midnight to noon GMT. The “Old-timers” orbit-LandSat‑7 and LandSat‑8 devices, which began running in 1972 year. Satellites can measure rainfall, solar radiation and other climatic indicators. The new satellite, which is shown in the video — SMAP (Soil Moisture Active-Passive) for more precise measurements of soil moisture: it was launched into orbit on January 31, 2015 onwards.