Satellites and Their Orbits

True (A)

Perigee

<p>Barycenter</p> Signup and view all the answers

<p>Sputnik I = First artificial satellite launched Telstar I = First satellite to transmit television signals Courier 1B = First transponder type satellite Anik = Canada's first communications satellite</p> Signup and view all the answers

<p>Beamforming (A)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>It is the point where the orbit crosses the equatorial plane moving north.</p> Signup and view all the answers

<p>Telstar I</p> Signup and view all the answers

<p>Sputnik I (B)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Planets move faster when they are closer to the Sun (C)</p> Signup and view all the answers

<p>apogee, perigee</p> Signup and view all the answers

<p>footprint</p> Signup and view all the answers

<p>The maintenance of a satellite's orbit (D)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>36,000 kilometers (C)</p> Signup and view all the answers

<p>Apogee = Highest point in an orbit Perigee = Lowest point in an orbit Footprint = Area covered by satellite signal Station-keeping = Maintaining a satellite's orbit</p> Signup and view all the answers

<p>Low-Earth Orbit (C)</p> Signup and view all the answers

<p>azimuth and elevation</p> Signup and view all the answers

<p>Johannes Kepler (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Eccentricity</p> Signup and view all the answers

<p>Transponder</p> Signup and view all the answers

<p>Prograde Satellite Orbit = Orbits in the same direction as Earth's rotation Inclined Orbits = Encompasses all Earth orbits except equatorial and polar Equatorial Orbits = Orbits directly above the equator Geostationary Orbits = Orbits with an angular velocity equal to that of the Earth</p> Signup and view all the answers

<p>Echo 1 (B)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Geosynchronous orbit</p> Signup and view all the answers

<p>Lines of Nodes</p> Signup and view all the answers

<p>A satellite that orbits in sync with the Earth's rotation (D)</p> Signup and view all the answers

The square of a planet's orbital period is proportional to the cube of its average distance from the sun (or in a satellite system, the primary).

The farthest point in a satellite's orbit from Earth's center.

The closest point in a satellite's orbit to Earth's center.

The center of mass of a two-body system (like a planet and its moon or Earth and the Moon), where their gravitational forces balance.

The point where a satellite's orbit crosses the Earth's equatorial plane in its northward direction.

The first artificial satellite.

The first artificial satellite launched by NASA in 1958.

The time it takes for a satellite or planet to complete one full orbit.

The power density of a signal at the receiver.

A frequency band used for satellite communication, typically around 12 GHz.

Geosynchronous satellites can provide reliable communication to almost all parts of Earth.

A satellite's speed depends on its distance from the Earth. It's faster closer to the Earth.

A satellite in a retrograde orbit moves in the opposite direction of Earth's rotation.

A geostationary orbit where satellites are positioned 120 degrees from each other.

The point on Earth directly below a satellite in orbit.

In Geosynchronous orbit, acceleration, speed, and distance balance centrifugal and gravitational forces.

The geographical area over which a satellite's signal is received.

An orbit that is not directly above Earth's equator.

Kepler's Laws describe how planets (and satellites) orbit the central body. A planet or satellite moves faster when closer to the central body.

A human-launched object orbiting a celestial body (earth or otherwise).

A satellite radio repeater that can receive and retransmit signals.

The system of control mechanisms in a satellite that supports the payload operation.

He discovered the laws that govern satellite motion, explaining the paths, velocities, and distances of objects in orbit.

The measure of how much an orbiting body's path deviates from a perfect circle.

A satellite orbit where the satellite moves in the same direction as the Earth's rotation.

Satellites that orbit in a circular path with an angular velocity equal to that of the Earth, staying in a fixed position relative to the ground.

The imaginary line connecting the points where a satellite's orbit crosses the Earth's equatorial plane.

Orbital patterns that occur directly above the equator, usually in a circular path.