Introducing 

Prezi AI.

Your new presentation assistant.

Refine, enhance, and tailor your content, source relevant images, and edit visuals quicker than ever before.

Loading…
Transcript

J2 perturbation for Satellites at Medium Earth Orbit

Aims

Coverage

Sat-Nav Configuration

Oblate Sphere

Obejctives

Medium Earth Orbit

Perturbing Forces Acting On A Satellite

Cyrus Mwangi

Perturbing Forces

Satellite Navigation System

Third Body Effect

Gravitational accelerations

Solid Earth Tide

Ocean Tide

J2 Perturbation

Problem

Zonal Harmonics J2

Geoid

Reference orbit/ideal

Latitude

To study the J2 perturbation on a satellite at medium Earth orbit (MEO) in order to understand how the Earth’s oblate shape effects satellites (at this orbit) and identify methods that are used to correct the orbits.

Simulate this perturbing force using SIMULINK

Bands of latitude

Actual/perturbed

Largest of all zonal harmonics

Asymmetrical gravity potential

Atmospheric Drag

Solar Radiation Pressure (SRP)

Model the motion of a satellite around a symmetric Earth

Use a manual switch to model the motion around an Asymmetric Earth

Evaluate the results of both simulations, using the first as the reference trajectory and the second as actual trajectory

Learn more about creating dynamic, engaging presentations with Prezi