Earth

Earth is the starting point for most people exploring space. Satellites, visible passes, launch paths, and deep-space missions are often described from the point of view of observers on Earth.

On TransitSatellite, Earth connects the live satellite tracker, the Solar System map, saved objects, and future education pages. It is the place users stand while looking outward.

Earth travels around the Sun while also rotating once each day. Satellites around Earth move in their own orbital paths, which is why timing and position matter so much for visibility predictions.

A satellite pass depends on where the satellite is, where the observer is, the shape of the orbit, and whether sunlight is hitting the spacecraft while the sky below is dark enough to see it.

For skywatchers, teachers, students, and satellite observers, Earth is the place where the data becomes personal. Location, time, visibility, and saved objects all connect back to Earth.

These linked mission pages explain how spacecraft have studied earth: their objectives, paths, instruments, and results. Each page carries its own mission record rather than repeating the planet description.