How to draw an artificial satellite

1, what is a satellite? 2. What is a satellite? 3. A brief introduction of a satellite? 4. What is a satellite? What is a satellite? Sputnik: An unmanned spacecraft orbiting the earth in space. Satellites basically orbit the earth according to the laws of celestial mechanics, but the actual motion of satellites is very complicated due to the influence of gravitational field of aspheric earth, atmospheric resistance, solar gravity, lunar gravity and light pressure in different orbits. Man-made satellite is the spacecraft with the largest number of launches, the widest use and the fastest development. Satellite launches account for more than 90% of the total number of spacecraft launches.

Satellites can be divided into three categories: scientific satellites, technical test satellites and application satellites. Scientific satellites are satellites used for scientific exploration and research, mainly including space physics exploration satellites and astronomical satellites. They are used to study the atmosphere, radiation belt, magnetosphere, cosmic rays and solar radiation of a planet and to observe other stars. Most artificial satellites in the world are artificial earth satellites, and there are also artificial Mars satellites.

What is a satellite? Question 1: What does satellite mean? Man-made earth satellite refers to an unmanned spacecraft man-made satellite that flies around the earth and runs in space orbit more than once. Satellites are generally composed of dedicated systems and support systems, and can be divided into three categories according to their uses: scientific satellites, technical test satellites and application satellites. They are the spacecraft with the largest number of launches, the widest use and the fastest development.

Question 2: What is a satellite satellite? Neither celestial body is a star, and a small satellite can only be called another satellite when its particles are inside a large satellite. For example, the particles of the ball and the moon are all inside the earth, so the moon is a satellite of the earth, but now the orbit of the moon around the earth is far from the earth. One day, when their particles move out of the earth, the moon will become an artificial satellite and a planet on an equal footing with the earth.

Mine is the truth, and I want to divide it.

Question 3: What is a satellite? What is a satellite?

Satellites refer to all the stars in the universe orbiting planets. It is called the satellite of any planet that orbits it. For example, the moon goes around the earth. It is a satellite of the earth.

Man-made satellite is a satellite made by human beings. Scientists use rockets to launch them into a predetermined orbit and make them orbit the earth or other planets for exploration or scientific research. We call satellites orbiting a planet satellites of that planet, such as artificial earth satellites, which are most commonly used for observation and communication.

1In the autumn of 957, the former Soviet Union successfully launched the world's first artificial earth satellite.

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What is the function of satellites?

The successful launch of a satellite is actually equivalent to the establishment of a laboratory or a communication and intelligence station in space. Humans on the ground can accomplish tasks such as space observation, broadcasting and communication by remotely controlling this artificial satellite.

Since 1957, when the Soviet Union successfully launched the first artificial satellite, human beings have owned many different kinds of artificial satellites.

Communication satellites are artificial satellites used for telephone, telegraph, television, broadcasting, data transmission and other services; Meteorological satellites are mainly used for meteorological observation; Earth resources satellites are used to find underground mineral deposits and investigate hydrological data. Navigation satellites are mainly used for traffic navigation services; Reconnaissance satellites are mainly used for enemy reconnaissance and fire detection. Other satellites have different uses according to different research designs.

Question 4: What is a satellite? "Sputnik" is a satellite made by human beings. Scientists use rockets to launch them into a predetermined orbit and make them orbit the earth or other planets for exploration or scientific research. Satellites orbiting a planet are called satellites of the planet, such as artificial earth satellites, which are most commonly used for observation and communication.

Question 5: What does the satellite look like?

Question 6: What satellites are there in China and what are their functions? There are many kinds of artificial earth satellites, including space messenger communication satellite, space remote sensor earth resource satellite, space weather station meteorological satellite, space guided navigation satellite, space spy reconnaissance satellite, space radio broadcasting satellite, space surveyor geodesic satellite and space clairvoyance astronomical satellite.

Composition of artificial earth satellite

Satellites generally consist of two parts, namely, the payload platform. Payload refers to the instruments and equipment used on the satellite to directly realize the satellite's self-use purposes or scientific research tasks, such as cameras used on remote sensing satellites, communication transponders used on communication satellites, communication antennas, etc. Platform is all supporting systems that serve the payload to ensure its normal operation, generally including structural system, temperature control system, power supply system, radio measurement and control system, attitude control system and orbit control system.

Flight principle of artificial earth satellite

The artificial earth satellite can run in the earth orbit, firstly because it has the first cosmic speed (7.9 km/s), and secondly because the gravity (centripetal force) of the earth keeps pulling it, just like pulling a stone on a thin rope. If the satellite flies fast and the centrifugal force exceeds the gravity of the earth, it will leave the earth and fly to distant space.

The five earliest stars hanging in heaven

The first man-made satellite was made in the former Soviet Union. The second type uses the Japanese satellite Otsuka, the third American Explorer 1, the fourth French experimental satellite No.1 and the fifth China Dongfanghong No.1..

Scientific exploration satellite

Scientific exploration satellite is a satellite used to detect the physical environment in space. Its main task is to detect neutral particles, high-energy charged particles, solid particles, low-frequency electromagnetic waves and plasma waves, magnetic fields and electric fields in the space environment.

applications satellite

Application satellite is an artificial earth satellite that directly serves the national economy and military affairs. According to the purpose, it can be divided into communication, meteorology, reconnaissance, navigation, geodesy, earth resources and multi-purpose satellites.

Radio relay satellite

Classification of communication satellites

There are many kinds of communication satellites, which are divided into geostationary orbit communication satellites and flying geostationary orbit communication satellites according to their orbits. According to the purpose, there are broadcast and television direct broadcast satellites, tracking and data interruption satellites, maritime satellites and military communication satellites.

The use of artificial satellites

With the appearance of artificial satellites, especially since the third geosynchronous satellite realized global communication, we can enjoy wonderful live broadcast at home.

Navigation global positioning system

"Global Positioning System", also known as "navigation", is a constellation composed of 24 satellites, which can accurately locate any place on the earth. Users can use a very small receiver to receive signals from four GPS satellites and calculate position data. The accuracy of military horizontal distance and height is 5 meters, and the civilian average is 15 meters.

Global navigation satellite system

The military global satellite navigation system and positioning system developed by the Soviet Union/Russia have the same function as the navigation satellite global positioning system of the United States.

satellite navigation system

At 0: 34 on May 25, 2003, China successfully sent the third Beidou-1 navigation and positioning satellite into space by the Long March III in xichang satellite launch center, which indicated that China has independently established a perfect navigation system and will play an active role in China's national economic construction.

This launch is the third Beidou-1 navigation and positioning satellite. The first two Beidou-1 satellites were launched on June 3rd and February 2nd, 2000, respectively. The navigation and positioning system is not working yet. This launch is a backup star of the navigation and positioning system. Together with the first two Beidou-1 satellites, it forms a complete satellite navigation and positioning system to ensure that satellite navigation information is provided all day.

meteorological satellite

Meteorological satellites can be divided into sun-synchronous orbit meteorological satellites and geostationary orbit meteorological satellites. Sun-synchronous orbit meteorological satellites patrol the earth's surface twice a day. Global meteorological data can be obtained. Geostationary meteorological satellites can continuously observe the global 1/3 area and send meteorological data back to the ground in real time.

Resource satellite

Resource satellites are satellites that survey and study the earth's resources. It can see through the stratum, find underground treasures, historical sites and stratum structure that people can't see with the naked eye, and can survey crops, forests, oceans, air and other resources. It can predict and identify the harvest of crops, and check and predict various natural disasters.

Returning remote sensing satellite

The recoverable satellite is a low-orbit satellite, which has three main purposes: observing the earth for a period of time and obtaining remote sensing information; The second is to conduct microgravity experiments; The third is manned flight. ......

Question 7: What artificial satellites are communication satellites, meteorological satellites, reconnaissance satellites, navigation satellites, geodesic satellites, earth resources satellites, interception satellites and so on?

Brief introduction of artificial satellite, satellite refers to all artificial celestial bodies orbiting planets in the universe. It is called the satellite of any planet that orbits it. For example, the moon goes around the earth. It is a satellite of the earth.

"Sputnik" is our human "Sputnik". Scientists use rockets to launch them into a predetermined orbit and make them orbit the earth or other planets for exploration or scientific research. We call satellites orbiting a planet satellites of that planet, such as artificial earth satellites, which are most commonly used for observation and communication.

The earth has a gravitational effect on the surrounding objects, so the thrown objects will fall back to the ground. However, the greater the initial velocity, the farther the object will fly. When Newton thought about the law of universal gravitation, he imagined throwing objects from high mountains at different horizontal speeds, each time the speed was higher, and each time the landing point was farther from the foot of the mountain. If there is no air resistance, when the speed is high enough, the object will never land. It will revolve around the earth and become an artificial earth satellite orbiting the earth.

Man-made satellite is the spacecraft with the largest number of launches, the widest use and the fastest development. 1957101On October 4th, the Soviet Union launched the world's first artificial satellite. Later, the United States, France and Japan also launched artificial satellites one after another. China launched the satellite Dongfanghong 1 on April 24th, 1970. By the end of 1992, China * * * had launched 33 different types of satellites.

Satellites generally consist of dedicated systems and support systems. Dedicated system refers to the system directly related to the mission performed by the satellite, also known as payload. According to the various uses of satellites, special systems using satellites include: communication transponders, remote sensors, navigation equipment, etc. The special system of scientific satellite is various instruments such as space physical exploration and astronomical exploration. The special system for technical test satellite is the test equipment for various new principles, technologies, schemes, instruments and equipment and new materials. Support system refers to the system that ensures the normal work of satellites and special systems in space, also known as service system. It mainly includes structural system, power supply system, thermal control system, attitude control and orbit control system, radio measurement and control system, etc. For recoverable satellites, there is also a return landing system.

The orbit of the satellite depends on the mission requirements of the satellite, which can be divided into low orbit, medium orbit, geosynchronous orbit, geostationary orbit, sun synchronous orbit, large elliptical orbit and polar orbit. Satellites fly around the earth at high speed. Low-orbit and medium-orbit satellites can fly around the earth several times to a dozen times a day, which is not limited by geographical, airspace and geographical conditions and has a wide field of vision. It can quickly exchange information with the ground, including the forwarding of ground information, and can also obtain a large number of remote sensing information of the earth. The remote sensing area of an Earth resources satellite image can reach tens of thousands of square kilometers.

When the orbit height of the satellite reaches 35,800 kilometers and it flies in the same direction as the earth's rotation over the equator, the period of the satellite's rotation around the earth is exactly the same as that of the earth's rotation, and its relative position remains unchanged. This satellite looks like it is still hanging in the sky on the earth, and it is called the geostationary orbit satellite, which can realize the uninterrupted information exchange between the satellite and the ground station and greatly simplify the equipment of the ground station. At present, the vast majority of TV relay and forwarding communication through satellites are realized by stationary communication satellites.

What is a satellite? Sputnik is our "Sputnik". Scientists use rockets to launch them into a predetermined orbit and make them orbit the earth or other planets for exploration or scientific research. We call satellites orbiting a planet satellites of that planet, such as artificial earth satellites, which are most commonly used for observation and communication.

The earth has a gravitational effect on the surrounding objects, so the thrown objects will fall back to the ground. However, the greater the initial velocity, the farther the object will fly. When Newton thought about the law of universal gravitation, he imagined throwing objects from high mountains at different horizontal speeds, each time the speed was higher, and each time the landing point was farther from the foot of the mountain. If there is no air resistance, when the speed is high enough, the object will never land. It will revolve around the earth and become an artificial earth satellite orbiting the earth.