To describe an ellipse I have often used radius of periapsis and radius
of apoapsis.
For example, the transfer orbit from LEO to GEO I would describe as a
(6678 km x 42164 km) ellipse.
But looking around it seems more often altitude is used instead of
distance from center. Should I be calling this a (300 km x 35786 km)
ellipse?
Hop