Artificial Satellites

Planetary probes and satellites are typically sent to planets in our solar system to gather data and study their physical characteristics, atmosphere, and geological features. They are equipped with various instruments such as cameras, spectrometers, and sensors to collect information that can help scientists better understand the planet's composition and environment. These missions are important for advancing our knowledge of the planets and their potential for supporting life or providing insights into planetary formation and evolution.

A satellite has to maintain 1800miles/hr. around the Earth. If its speed were to speed up the satellite would fly off in to space. If the satellites speed were to slow down it would come crashing into Earth.

Sputnik 1 was launched on a R-7 Semyorka rocket, which was a Soviet intercontinental ballistic missile. It was the world's first intercontinental ballistic missile and the first rocket to successfully launch a satellite into orbit.

The name of the US's first successful spy satellite was CORONA. It was launched in 1960 and played a crucial role in gathering intelligence during the Cold War.

A satellite can do many things. There are weather, communication, navigation, and scientific satellites. Mostly the names will help you. The weather satellites give info about the weather of earth at all times. The communication satellites help get you communicating with other people like over phone or radio and television. Navigation satellites help sailors and other vehicle drivers navigate thoughout where they are going. Scientific satellites basically find out sciency things about the earth like radiation.

ADVANTAGES

1)Used in long distance communications such as in television,fax,internet etc

2)Used in television and radio broadcasting etc

3)Weather forcasting (i.e) in prediction of rainfall,snowfall,storm etc

4)Agricultural monitoring(i.e)crop disease,crop failure.

5)Collecting information about other planets,stars and other celestial bodies

The concept of using satellites to communicate and observe Earth was pioneered by scientists and engineers from multiple countries in the mid-20th century. One of the key figures in this field was the American engineer and scientist Arthur C. Clarke, who proposed the idea of geostationary communication satellites in a 1945 paper. However, the first artificial satellite launched into space was Sputnik 1, a Soviet spacecraft, in 1957.

The first artificial satellite was the explorer one.

To make a sputnik lamp, you will need a central sphere or core for the light source, along with protruding arms at various angles like the Soviet satellite after which it's named. These arms should have sockets for light bulbs at the ends. Assembly can be done using metal rods or wires to connect the arms to the core while ensuring they are evenly spaced for a balanced look. Be sure to follow safety guidelines when working with electrical components.

Most communication satellites orbit at or near the equator. In the northern hemisphere this is obviously to the south. In the southern hemisphere it is to the north, so the dishes would point north.

GPS IIR satellite launched on final SLC-17A Delta II

Luxembourg has the most number of satellites per population, with a high number of satellites for every 1,000 people compared to other countries.

Sputnik 1, the first artificial Earth satellite, completed 1,440 orbits around the Earth during its mission, which lasted from October 4, 1957, to January 4, 1958.

Sputnik I completed 1,440 orbits before falling back to earth.

Sputnik 1, launched by the Soviet Union on October 4, 1957, was the first man-made satellite to orbit Earth.

Yes, that's correct. A geostationary satellite orbits the Earth at the same rate that the Earth rotates, so it appears to be stationary relative to an observer on the ground at the equator. This means it always stays above the same point on the Earth's surface.

Most French satellites are launched from the Guiana Space Centre in Kourou, French Guiana. This spaceport is the primary launch site for European space missions and offers advantages such as its proximity to the equator, which is beneficial for launching satellites into geostationary orbit.

Artificial satellites are used for communication, weather monitoring, navigation, Earth observation, scientific research, and military purposes.

Three well-known man-made satellites are the International Space Station (ISS), the Hubble Space Telescope, and the Global Positioning System (GPS) satellites.

Communication or geostationary satellites orbit the Earth around the equator at a height of approx 23000 miles. To fit a satellite dish to your home you need to know the latitude on the globe of your town. The dish angle approaches the horizontal the further north you live. Note: It's the same for setting the angle of the gnomon on a sundial.

The first passive satellite transponder was known as Echo 1, launched by NASA in 1960. It was a large, balloon-like satellite that reflected radio signals back to Earth, enabling long-distance communication.

The Sputnik satellite orbited the Earth at an altitude ranging from approximately 143 miles to 586 miles.

The Sputnik satellite orbited Earth at an altitude between 215 to 939 kilometers (133 to 583 miles).

The absolute minimum number is for momentary complete cover is 4 in a triangular prism shape, but these will not stay in the right positions as they are not in a geostationary orbit.

3 in geostationary orbit will give very bad and failing coverage at the poles and at the outer edge of their footprint

6, 3 in polar orbit and 3 in geostationary orbit will help, but for a practical coverage 4 in geostationary orbit and 4 in polar orbit will be more practical

1). The orbit is an ellipse, with the center of the earth at one focus. Every point on the orbit lies in the same plane. 2). The satellite's speed is not constant. The speed is highest when the satellite is closest to the earth, and lowest when it is farthest from the earth. The line from the center of the earth to the satellite sweeps out equal areas in equal time intervals. 3). There are an infinite number of orbits possible, with different sizes and different eccentricities. If any two orbits are compared, the ratio of the squares of their periods of revolution is equal to the ratio of the cubes of the semi-major axes of their ellipses. For convenience, this description referred to an artificial satellite in orbit around the earth. But these statements are just Kepler's Laws, and they apply equally to ANY satellite ... natural or artificial ... in orbit around ANYTHING that's much more massive than the satellite ... the earth, the moon, Jupiter, the sun, or the center of the galaxy.