Elliptic motion
Newtonian theory, Keplerian law, and two-body problem applied to orbital motion
NEWTON THEORY↗
Engineering topics
Danby, J. M. A.
Publications and source records attributed to Danby, J. M. A..
Matrix methods
Partial differential equations and matrix method for obtaining equations of motion in orbit
MOTION EQUATION↗
INTEGRATION OF THE EQUATIONS OF PLANETARY MOTION IN RECTANGULAR COORDINATES
Integration of equations of planetary peturbations in rectangular coordinates
PLANET↗