UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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has the same period a that of the Earth
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has a circular orbit
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rotates in the equatorial plane
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has all of the above
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Detailed explanation-1: -A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth’s rotation period. Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky that is typically some form of analemma.
Detailed explanation-2: -A geosynchronous satellite is a satellite that orbits the earth with an orbital period of 24 hours, thus matching the period of the earth’s rotational motion. A special class of geosynchronous satellites is a geostationary satellite.
Detailed explanation-3: -The correct answer is option 2) i.e. 36, 000 km. CONCEPT: A geostationary satellite is an earth-orbiting satellite that revolves around the earth at the same time as the earth rotates along its axis. Due to the same time of the revolution, it appears stationary from the Earth, and hence it is called geostationary.
Detailed explanation-4: -The geosynchronous orbit (GSO)/geostationary orbit (GEO) has the second most satellites with 565, which are used for telecommunications and Earth observation.
Detailed explanation-5: -Geosynchronous means that the satellite orbits with the same angular velocity as the Earth. A geostationary orbit is geosynchronous, but it is also required to have zero inclination angle and zero eccentricity. Geostationary satellites, therefore, remain essentially motionless above a point on the Equator.
Detailed explanation-6: -In addition to civilian communications, the U.S. military use satellites in geosynchronous orbits for communication purposes and to monitor areas of concern. According to the satellite monitoring website Satellite Signals (opens in new tab), as of August 2022, there were 539 active satellites in a geosynchronous orbit.
Detailed explanation-7: -Geosynchronous Transfer Orbit. To attain geosynchronous (and also geostationary) Earth orbits, a spacecraft is first launched into an elliptical orbit with an apoapsis altitude in the neighborhood of 37, 000 km. This is called a Geosynchronous Transfer Orbit (GTO).