13 Questions
What does the true anomaly define?
Where within the orbit the satellite is at a given point in time
What is the significance of the perigee?
It is the point where the satellite is closest to Earth
What is the role of the ascending node in an orbit?
Marks where the satellite is going up (north)
Which angle defines the tilt between the orbital plane and the equatorial plane?
Inclination
What does the argument of perigee describe?
Angle from ascending node to perigee from Earth's center
What does RAAN stand for and what does it represent?
Right Ascension of Ascending Node; it is an angle defining orbital plane's twist relative to Vernal equinox
What is the angle that defines the orientation of the orbital plane within the orbital plane?
Argument of perigee
Which point in an orbit is farthest from Earth?
Apogee
What does the right ascension of the ascending node represent?
Angle from ascending node to perigee
Which angle determines the 'tilt' between the orbital plane and the equatorial plane?
Inclination
What is defined as the angle from the ascending node to the perigee, from Earth's center?
Argument of perigee
In an orbit, what is referred to as where the satellite is going up (north)?
Ascending node
What is meant by 'twist' angle of the orbital plane, from a fixed direction in space to the ascending node?
'Twist' of orbital plane with respect to Earth
Test your knowledge on satellite orbits and true anomaly. Learn about how the true anomaly θ defines the position of a satellite within its orbit, including special points such as perigee and apogee, and how to compute the satellite's position using parameters like a, e, and θ.
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