Technically, a satellite in free-fall (and orbit is a special case of "free-fall") is effectively weightless. What we call weight is the force of the RESISTANCE to gravity; I "weigh" 220 pounds because I an standing on the Earth.
The satellite has its own mass, and this can be anything from "tiny" to "enormous".
The orbit helps the satellite go into orbit.
... a feeling as if his weight is zero, because he is constantly falling around the Earth in the satellite's orbit..
24 hours
The repetitivity and revisit of satellite orbit refers to the time elapsed between observations of the same point on earth by a satellite. It usually depends with the target location, the orbit of the satellite and the swath of the sensor.
The very first satellite put into orbit was the Russian satellite Sputnik put into orbit on October 4th, 1957.
YES As height increases, speed of satellite decreases.
By definition planets orbit a star and satellites orbit a planet. Therefore there are no satellite planets.
The plane of a satellite's orbit must include the center of the earth.
In 2005 a satellite went into orbit around Venus.
Both of those words refer to points in the orbit of an earth satellite ... the moon or any artificial satellite. Apogee . . . the point in the orbit where the satellite is farthest from the earth. Perigee . . . the point in the orbit where the satellite is closest to the earth.
Satellite's
A satellite in an equatorial orbit flies along the plane of the Earth's equator. If an orbit does not lie at an equatorial orbit, then it will not remain at a fixed state.