The time it takes to put together a satellite varies on the size and structure of the satellite. A simple satellite could be put together in a couple of months, where a large science mission could take ten or more years.
Most communications satellites operate outside of the earth's atmosphere. The GPS satellites are about 23,000 miles from the surface of the earth.
It depends one what satellite it is. Differents types of satellite orbit the Earth at different altitudes. In Low Earth Orbit satellites travel between 160km and 2000km above the Earth, in Medium Earth Orbit they travel between 2000km and 35000km above the Earh, and in Geostationary Orbit they travel above 160km and below 35000km around the Equator.
You mean Earth observation satellites, and the answer is near-Polar low-Earth orbits. This means that as the satellite orbits from above one pole to the other, the Earth turns beneath it, and the satellite passes over the Equator, and every other point on its orbit, at a different place on each successive orbit. In this way, after enough orbits, it can view the whole Earth. Earth observation satellites are placed in low-Earth orbit because (a) they travel faster over the ground at lower altitude and (b) being closer to the ground, their telescopes do not need to be so powerful to achieve a given spatial resolution. Military observation, or spy, satellites, are often placed in a high parking orbit until they are needed, whereupon they are placed into a highly elliptical orbit to allow them to come very close to Earth (and hence see it with great detail) over the region of interest.
communication satellites, astronomy, navigation, etc.
The minimum altitude of a low Earth orbit is approximately 160 kilometers (100 miles) above the Earth's surface. This altitude allows satellites to remain in orbit while being close enough to the Earth to effectively carry out their functions.
That depends on the altitude. Low altitude satellites, about 140 miles up, take about 90 minutes to orbit. Communications satellites 23,000 miles up take 24 hours. The higher the orbit, the longer it takes.
Earth-observing satellites typically orbit in low Earth orbit (LEO) or geostationary orbit (GEO). The orbital altitude of these satellites is determined by factors such as the mission objectives, desired coverage area, and the balance between gravitational pull and orbital velocity.
Satellites typically orbit in low Earth orbit (LEO) at altitudes ranging from 160 to 2,000 kilometers, in medium Earth orbit (MEO) around 10,000 kilometers, or in geostationary orbit (GEO) at around 35,786 kilometers above Earth's equator. The altitude depends on the purpose and function of the satellite.
Satellites in Low Earth Orbit (LEO) are typically around 160-2,000 kilometers away from the Earth's surface. Geostationary satellites, on the other hand, orbit at an altitude of about 35,786 kilometers above the equator.
1,400,000 meters is the same as 1400km
GPS satellites orbit the Earth at an altitude of about 20,000 km in medium Earth orbit (MEO). They move in precise paths to ensure global coverage and are spaced evenly to provide accurate positioning data. The satellites follow elliptical orbits that repeat every 12 hours.
Gravity keeps satellites in orbit. The closer you are to the Earth, the faster you have to go to maintain your orbit. At low Earth orbit, the altitude of the Space Station, you make an orbit every 90 minutes. At the Moon's distance you need over 27 days to go around the Earth. In-between there is an altitude which matches the rate of the Earth's rotation. Many satellites orbit at this altitude.
The time it takes to put together a satellite varies on the size and structure of the satellite. A simple satellite could be put together in a couple of months, where a large science mission could take ten or more years.
Satellites are typically positioned around 22,236 miles above the Earth in a geostationary orbit.
Satellites typically travel at speeds around 28,000 kilometers per hour (17,500 miles per hour) in order to maintain orbit around the Earth. The exact speed can vary depending on the altitude and type of orbit the satellite is in.
With large number of low-earth-orbit satellites and the geo-synchronous orbit stuffed full of communications satellites, there aren't all THAT many "medium" altitude satellites. But there are some. The GPS navigation satellites, for example, are in highly inclined 12-hour orbits, and an unknown number of military "spy" satellites are in that middle range.