Glossary
Space Trajectories. Orbital Transfer

Keplerian; Keplerian

Relating to the motion obtained in the two-body problem.

Orbital parameters

Geometric elements for locating a Keplerian orbit in a Galilean frame of reference.

Osculateur; osculating

Relating to the orbit that would be followed under Keplerian assumptions.

Énergie minimale; minimum energy

Ellipse with minimal semi-major axis passing through two given points.

Manœuvre impulsionnelle; impulsive maneuver

Instant gear change.

Méthode indirecte; indirect method

Method using the maximum principle to find the order.

Vector adjoint; costate vector

Vector associated with the state vector used to express the optimality conditions of an optimal control problem.