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Vanguard 1 or Vanguard I was the fourth artificial satellite launched, and the oldest still orbiting Earth, though there is no longer any communication with it.
Launched on March 17, 1958, Vanguard I celebrated its 50th anniversary in space in 2008. Having completed over 200,000 orbits of the Earth, it is expected to remain in orbit for up to 2000 years. Its current apogee is almost 2500 miles (4000 km) and its perigee about 400 miles (650 km). It completes an orbit of the Earth every 132 minutes.
The Moon is the oldest (and only known natural) satellite at an estimated age of 4.5 billion years. Its perigee and apogee are about 223,000miles (360,000km) and 252,000miles (406,000km) respectively. It completes one orbit of the Earth every 27.3 days.
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How much time does a satellite need to reach outer space from the time of launch Also how much time does it need to start its orbit?
Typically, a satellite reaches outer space within about 10 minutes after launch, as it ascends past the Kármán line, which is defined as the boundary of space at 100 kilometers (62 miles) above sea level. Once in space, the satellite often takes an additional 30 minutes to a few hours to reach its designated orbit, depending on the specific mission profile and the altitude of the orbit. After achieving its orbit, the satellite undergoes a series of checks before becoming fully operational.
Does a rock speed up to reach a higher orbit?
No, a rock cannot speed up on its own to reach a higher orbit. A change in orbit requires an external force, such as propulsion or gravity assists.
What was the first space mission to orbit any celestial body other than the earth?
The first space mission to orbit a celestial body other than Earth was the Soviet Luna 1 mission in 1959. It successfully orbited the Moon, making it the first spacecraft to reach the vicinity of another celestial body.
Why do satellites need to reach a specific speed to escape earths surface?
Satellites need to reach a specific speed, known as escape velocity, to overcome Earth's gravitational pull and enter orbit or travel into space. This speed, approximately 11.2 kilometers per second (about 25,000 miles per hour), allows them to break free from the gravitational attraction without falling back to Earth. Achieving this speed ensures that the satellite can maintain a stable trajectory and avoid being pulled back by gravity. If a satellite doesn't reach this speed, it will not be able to escape Earth's atmosphere and will eventually descend back to the surface.
How is a satellite placed in orbit and why it retains its position in space?
This can vary depending on the function of the satellite. In general, the satellite is launched by unmanned rockets or from the space shuttle payload bay at the correct altitude. After the satellite is released from the launch vehicle, the speed of a satellite is adjusted so that the rate at which it is being pulled back toward the earth is the same as the rate at which the earth is turning underneath it. So it is continually falling but not hitting the earth. This is what is also happening to the space shuttle when in earth orbit and the ISS. Satellites in geostationary orbit - where they appear to remain over a single point on the earth - must have a circular orbit for this to occur. That is why they are placed over the equator. Any other orbit is elliptical in shape. The problem that arises is that the earth is not perfectly round, even at the equator, and so the orbit of geostationary satellites must be adjusted every two weeks to compensate for this. The engines are remotely fired for the correct amount of time. When the fuel runs out, this can no longer be done. Orbital mechanics is a complex and detailed concept to understand. See some of the Web Links to the left.
First man-made lunar satellite?
The first man-made lunar satellite was the Soviet probe Luna 1, which was launched on January 2, 1959. It was intended to impact the moon, but instead, it became the first spacecraft to reach heliocentric orbit, making it the first human-made object to leave Earth's orbit.
What was the date of the first space travel?
The first man made satellite to orbit the Earth was Sputnik 1, launched on 4th October 1957 by the Soviet Union Yuri Gagarin, a Soviet pilot, was the first man to reach orbit on 12th April 1961.
What was the name of the satellite that was the first satellite to orbit earth and the craft circled earth every 95 minutes at almost 2000 miles per hour until three months later it fell from the sky?
Sputnik was the first satellite to orbit the Earth. It was Russian and transmitted a radio signal. It is possible that a earlier satellite could be in orbit, without any communications this would be the same as a cannon shell etc. So long as an object can reach orbit it will constantly drop towards the planet and because the planet is round the object will rotate around being pulled by gravity
Who built the first spaceship?
Sergei Korolyov invented the first spaceship in Moscow, Russia.
How does gravity affect a satellite launch?
Gravity affects a satellite launch by pulling the satellite towards the Earth during its initial phase of ascent. This requires the rocket to generate enough thrust to overcome gravity in order to reach the desired orbit. Once the satellite is in orbit, gravity continues to affect its trajectory, helping to keep it in orbit around the Earth.
How long does it take for a satellite to get to space?
It typically takes a few minutes for a satellite to reach space after launch. The exact time can vary depending on the launch vehicle and the specific orbit the satellite is being deployed into.
What kind of energy transformations occur in a satellite?
In a satellite, electrical energy is transformed into kinetic energy during launch, allowing the satellite to reach its desired orbit. Once in orbit, solar panels on the satellite convert solar energy into electrical energy to power its systems. Additionally, some satellites use radioisotope thermoelectric generators to convert heat energy into electrical energy.
How many years will a satellite to reach Pluto?
It takes 9 years, and the first satellite will reach Pluto in 2015. The satellite was launched on January 9, 2006. I cannot wait till we find out the deep secrets of Pluto...
What was the first space shuttle to reach Earth's Orbit?
The first space shuttle to reach Earth's orbit was the Space Shuttle Columbia, which completed its maiden flight on April 12, 1981.
How to launch satellite into orbit?
A satellite can be launched into orbit simply by launching it out of the Earth's atmosphere. To do so, the object will need to reach escape velocity, calculated by the formula v = sqrt(2GM/r), where G is the universal gravitational constant, M is the mass of the earth, and r is the distance from the center of the earth.
What was the satellite that was launched by americans in the Cold War?
Explorer I (the first US satellite to orbit the Earth) was launched on January 31, 1958, and discovered the radiation belts known as the Van Allen Belt. Additional satellites were launched to study the radiation. Unfortunately Explorer 2 (March 5, 1958) failed to reach orbit. Explorer 3, also known as Gamma 1, was successfuly orbited on March 26, 1958, becoming the second US satellite in space.
Who was the first country to reach space?
The Soviet Union was the first country to reach space with the launch of the satellite Sputnik 1 on October 4, 1957.
