Artificial Satellites

Cape Cod in Massachusetts. Cape Canaveral (location of US space facility) in Florida. Other world capes include : Cape of Good Hope at the southern tip of Africa. Cape Horn at the southernmost tip of South America.

Man-made satellites are either in low, medium or high earth orbits, depending on their function. The closest ones, including the International space station, are in a low earth orbit, up to a height of 2000 km. The International Space Station orbits at a height of around 340km, while the Hubble Telescope is around 595km. The advantage of these is that less energy is required to get there, but the disadvantage is that their orbits may decay over time, since there is some drag on the atmospheric gas still at these heights - so these may need a 'boost' every now and then to maintain their orbits. At higher altitudes, satellites will orbit more slowly, taking longer to make one orbit. The medium Earth orbit extends to 35,786km above the Earths surface, from here the high earth orbit begins. At this point, the time taken for a satellite to orbit once around the earth is 24 hours, the same as one day. 35,786km is a special orbit for Geo-stationary satellites. Since they orbit the earth in the same time that it takes the earth to spin once on its axis, it means that the satellite can stay in roughly the same spot over the earth.

The James Webb Space Telescope is currently the most expensive satellite ever created, with a total cost of around $10 billion. It is set to launch in late 2021 and will be used to study the universe in infrared wavelengths.

The first satellite was Sputnik 1, launched by the Russians on October 4th 1957.

NASA became the US civilian space agency as the successor to NACA (National Advisory Committee for Aeronautics) on October 1, 1958. The earliest US satellites were launched by the military, such as the US Army's Ballistic Missile Agency (Explorer I, January 31, 1958) and the US Navy's Project Vanguard (Vanguard I, March 17, 1958).

NASA was involved in a string of unsuccessful launch attempts, notably the Beacon series. Its first success was with the Navy's Vanguard 2 on February 17, 1959 (this satellite is still orbiting the Earth), and NASA continued the Explorer series with Explorer 7 on October 13, 1959.

The first satellite to be repaired in space was Solar Max. It was repaired by astronauts aboard the Space Shuttle Challenger in 1984.

The total cost of Sputnik 2, including its development, launch, and mission operations, was estimated to be approximately $3.9 million USD. This 1957 mission carried the first living creature, a dog named Laika, into orbit.

Sputnik 1 is named after the Russian word for "satellite" or "companion of the Earth." The word "Sputnik" also means "travelling companion" or "fellow traveler." The name was chosen to reflect the satellite's purpose of being the first artificial Earth satellite to orbit the planet.

Satellites have become smaller, more powerful, and more widely used for various purposes over the years. Advances in technology have allowed for increased data transmission speeds, improved imaging capabilities, and greater orbital maneuverability. Satellites now play a crucial role in communication, Earth observation, navigation, and scientific research.

Scientists track Voyager 1's distance from Earth using radio signals. By measuring how long it takes for signals to travel to the spacecraft and back, they can determine its precise distance. This technique is known as ranging.

From Earth to an orbiting satellite it takes approximately 200 to 299million M/S or slightly slower than the speed oflight. This varies on weather and atmospheric conditions. The signal is significantly faster, or closer to the speed of light (299792458 M/S), in the Vacuum of Outer Space.

Some satellites last longer then others. The age can be determined by the efficiency of the machinery that it works with. Example: One of the satellite's solar panels have been damaged by debris. That satellite will not last as long as one that has its solar panels at full efficiency.

Disadvantages of satellites include high costs for manufacturing and launching, vulnerability to space debris and damage from solar radiation, limited lifespan due to fuel constraints, and potential for signal interference.

If a satellite is in an elliptical orbit around the Earth, the Earth will be at one of the focii. The speed of the satellite will then constantly be changing. It will move the fastest when it is nearest to the Earth (perigee) and slowest when it is furthest away (apogee).

Satellites can last anywhere from a few years to several decades in space, depending on their design, intended mission, and how well they are maintained. Factors such as exposure to radiation, micrometeoroids, and orbital decay can affect the lifespan of a satellite. Some satellites are designed to be replaced or de-orbited after a certain period of time.

The typical lifespan of a satellite is around 5-15 years, depending on factors like its design, construction, and operational use. However, some satellites have been known to exceed their planned lifespans and continue operating for several decades.

Russia developed and launched the first satellite Sputnik1, launched in 1957.

A male koala that that was dropped as a baby and turned wild. It then flew in a rocket ship into space and was released It now traveling in disguise of lumps of rock and ice in the oort cloud.

The five major types of artificial satellites are: research, communications, weather, navigational, and applications. Please see the related links.

1.) Error Probality decreases 2.) C/N Ratio Increases 3.) gain of signal increases
The official definition of an active satellite is "A satellite carrying a station intended to transmit or retransmit radio communication signals."

Satellite navigation systems provide accurate real-time positioning information, improving navigation efficiency and reducing travel time. They offer global coverage, enabling users to navigate in remote areas where traditional navigation methods might not work. Additionally, satellite navigation systems can provide additional features such as traffic updates, points of interest, and route optimization.

Actually, the US did not launch the first space satellite. The former USSR did, in 1957, launching Sputnik-I. The US followed in 1958 with Explorer 1, formally, Satellite 1958 Alpha. Dwight D. Eisenhower was president at that time.

Stars don't have a set pattern. They do travel across the space, although from our point of view it takes very long for them to change position on the heaven sphere.

Constellations won't look the same forever.

Also note that stars in the same constellations don't neccesarily have to be close together. Often their relative distances are greatly larger than their distances to us.

Well today its used basically on everthing cellsphones,computers,GPS,cable,maps,and many more thing but resentlly the satellite is not working good because cellphones used a lot of data well if you wanna learn about satellites and how u to build an Anita at....santosbeltran20@gmail.com