How Is Altitude Calculated From Earth's Radius and Satellite Distance?

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SUMMARY

Altitude is calculated using the formula r = rrE + h, where r represents the distance from the Earth's center to the satellite, rrE is the Earth's radius, and h is the altitude above the Earth's surface. This equation illustrates that altitude is derived by subtracting the Earth's radius from the total distance to the satellite. Understanding this relationship is crucial for accurately determining satellite positions and their operational altitudes.

PREREQUISITES
  • Understanding of basic geometry and spatial relationships.
  • Familiarity with Earth's radius, approximately 6,371 kilometers.
  • Knowledge of satellite positioning and orbital mechanics.
  • Concept of altitude in relation to Earth's surface.
NEXT STEPS
  • Research the mathematical principles behind satellite orbits and distances.
  • Explore the effects of altitude on satellite signal transmission.
  • Learn about geostationary satellites and their altitude calculations.
  • Investigate the relationship between altitude and gravitational forces.
USEFUL FOR

Aerospace engineers, satellite communication specialists, and students studying orbital mechanics will benefit from this discussion.

aeromat
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The Problem:
Why is it that r = rrE + h?

r = distance from Earth's centre to satellite
rrE = Earth's radius
h = altitude

Why is it that you find altitude by subtracting Earth's radius from radius? How does that make sense..
 
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aeromat said:
The Problem:
Why is it that r = rrE + h?

r = distance from Earth's centre to satellite
rrE = Earth's radius
h = altitude

Why is it that you find altitude by subtracting Earth's radius from radius? How does that make sense..

What is your definition of altitude?
 

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