Table of Contents
- 1 Do satellites affect the atmosphere?
- 2 Why are satellites put in orbit above the atmosphere?
- 3 How does Earth’s atmosphere affect satellite transmissions?
- 4 What is the effect of satellite?
- 5 How a satellite is placed in orbit?
- 6 What are the major problems of satellites?
- 7 What happens when a satellite reaches the final altitude?
- 8 How is a satellite placed in orbit around the Earth?
- 9 What would happen if an Astronaut hit the surface of Earth?
Do satellites affect the atmosphere?
Radiation exposure. Satellites in Earth orbit are exposed to significant amounts of high-energy electromagnetic radiation and charged particles that do not reach Earth’s surface on account of its protective atmosphere. The Van Allen radiation belts contained within Earth’s magnetosphere.
Why are satellites put in orbit above the atmosphere?
The Short Answer: Gravity–combined with the satellite’s momentum from its launch into space–cause the satellite go into orbit above Earth, instead of falling back down to the ground.
How does the orbit of a satellite affect what we can observe?
Satellites in geostationary orbit rotate with the Earth directly above the equator, continuously staying above the same spot. This position allows satellites to observe weather and other phenomena that vary on short timescales.
How does Earth’s atmosphere affect satellite transmissions?
Indirectly, space weather can affect satellites by heating the upper atmosphere and causing it to expand. The expanded atmosphere is denser at higher altitudes, and this greater density puts a drag on orbiting satellites.
What is the effect of satellite?
Effects on the satellite depend on the orbit of the satellite. Geosynchronous satellites in the highest orbits are susceptible to bursts of high energy particles that are infrequently emitted from the Sun. These particles may cause (1) memory upsets, (2) dielectric charging and (3) radiation damage to components.
How satellite orbits can be affected by space weather events?
Satellite Operations During periods of intense space weather, the density of particles within the belts increases, making it more likely that sensitive electronics will be hit by a charged particle. The increased drag on the satellite slows the spacecraft and changes its orbit, which will need to be corrected.
How a satellite is placed in orbit?
All satellites are launched to space and into their orbit by hitching a ride on a rocket or on the Space Shuttle, where they are placed inside the cargo bay. There are also countries and large corporations that have their own rocket launch facilities, so they can easily send their own satellites into orbit.
What are the major problems of satellites?
Most failures of satellite missions, however, can be attributed to one or more of the following factors:
- Space weather.
- Space Dust.
- Collisions.
- Incorrect orbit.
- Internal problems.
What are the effects of satellite?
What happens when a satellite reaches the final altitude?
When the satellite reaches the final altitude the rocket or booster is again fired to retain it in the geostationary orbit with the correct velocity. Alternatively when launch vehicles like Ariane are used the satellite is launched directly into the elliptical transfer orbit.
How is a satellite placed in orbit around the Earth?
Using this system the satellite is placed into a low earth orbit with an altitude of around 180 miles. Once in the correct position in this orbit rockets are fired to put the satellite into an elliptical orbit with the perigee at the low earth orbit and the apogee at the geostationary orbit as shown.
How are satellites made energy efficient?
There is a considerable amount of expertise and technology used to ensure that satellites enter their orbits in the most energy efficient ways possible. This ensures that the amount of fuel required is kept to a minimum; an important factor on its own because the fuel itself has to be transported until it is used.
What would happen if an Astronaut hit the surface of Earth?
All the trajectories shown that hit the surface of Earth have less than orbital velocity. The astronauts would accelerate toward Earth along the noncircular paths shown and feel weightless. (Astronauts actually train for life in orbit by riding in airplanes that free fall for 30 seconds at a time.)