This required velocity is approximately 7. 8 kilometers per second (about 17,500 miles per hour) at the altitudes most commonly used for human spaceflight.
Thermosphere Density and Its Impact on Low Earth Orbit
6 degrees, which allows the ground track to pass over populated areas of the Northern Hemisphere. Atmospheric Density and Orbital Decay Even within the defined upper range, trace atmospheric molecules exist, creating a minuscule drag force that gradually slows a satellite's momentum.
Below 160 kilometers, atmospheric drag becomes so significant that a spacecraft would require prohibitively large amounts of fuel to maintain orbit, effectively making it a suborbital trajectory rather than a sustained orbit. The visual resolution for Earth observation is substantially higher, allowing satellites to capture detailed imagery for agriculture, urban planning, and disaster response.
Understanding Thermosphere Density in Low Earth Orbit
Furthermore, the relatively accessible orbit requires less energy to reach, reducing launch costs and enabling the deployment of large satellite constellations for global internet coverage. Advantages of the Low Earth Zone The proximity of low Earth orbit to the planet provides significant advantages that are unattainable from higher orbits.
More About What is considered low earth orbit
Looking at What is considered low earth orbit from another angle can help expand the discussion and give readers a second clear paragraph under the same section.
More perspective on What is considered low earth orbit can make the topic easier to follow by connecting earlier points with a few simple takeaways.
