Usage examples (18)

• For mean anomaly, I found that 359.4 degrees works well enough periapsis, which is perihelion, is ~in mid 2012; it is "among" the outer planets by approx 1992.
• The object will go into an orbit, which of course a periapsis precession, but in a pure two-body problem it is in an eternal orbit.
• This is the periapsis maneuver setting up for the Titan 50 encounter on Feb. 7.
• The activity consisted of one 7hr 30min segment, which included periapsis passage.