09-23-2021-0744 - ground track ground trace

 A ground track or ground trace is the path on the surface of a planet directly belowan aircraft's or satellite's trajectory. In the case of satellites, it is also known as a suborbital track, and is the vertical projection of the satellite's orbit onto the surface of the Earth (or whatever body the satellite is orbiting).^[1]

A satellite ground track may be thought of as a path along the Earth's surface which traces the movement of an imaginary line between the satellite and the center of the Earth. In other words, the ground track is the set of points at which the satellite will pass directly overhead, or cross the zenith, in the frame of reference of a ground observer.^[2]

Ground track of the International Space Station for approximately two periods. The light and dark regions represent the regions of the Earth in daylight and in night, respectively.

https://en.wikipedia.org/wiki/Ground_track

above. david bowie space oddity