Calculation Objects - Keplerian Elements

Keplerian Elements components are a subset of Calculation Object components. They are the classical elements specifying an orbit by itz size, shape and three-dimensional orientation in space.

Syntax

ComponentBrowser */ SetValue "Calculation Objects" {Component} {Attribute} <Value> [{Unit}]

ComponentBrowser */ Duplicate "Calculation Objects" {Component} <Duplicate Component Name>

Description

The Keplerian Elements components are:

Component Description
Altitude of Apoapsis Altitude at apoapsis of the conic orbit
Altitude of Periapsis Altitude at periapsis of the conic orbit
Argument of Latitude Sum of argument of periapsis and true anomaly
Argument of Periapsis Angular distance from the ascending node to periapsis
Eccentric Anomaly Eccentric Anomaly of conic orbit
Eccentricity Eccentricity of the conic orbit
Inclination Inclination of the plane of the orbit
Longitude of Ascending Node Longitude of Ascending Node
MeanAnomaly Mean anomaly of the orbiting object
Mean Motion Mean Motion (revs/sec) of conic orbit
Orbit Period Period of the conic orbit
RAAN Right Ascension of the Ascending Node of the plane of the orbit
Radius of Apoapsis Radius at apoapsis of the conic orbit
Radius of Periapsis Radius at periapsis of the conic orbit
Semimajor Axis Half the major axis of the conic orbit
Time Past Asc Node Time past the ascending node of the conic orbit
Time Past Periapsis Time past the periapsis of the conic orbit
True Anomaly Angular distance between the orbiting object and periapsis

The attributes for each component have the same names and value selections that appear in the Astrogator graphical user interface.

Examples

Duplicating a Keplerian Elements component

ComponentBrowser */ Duplicate "Calculation Objects" RAAN "My RAAN"

Changing an attribute of a custom Keplerian Elements component

ComponentBrowser */ SetValue "Calculation Objects" "My Inclination" CoordSystem "CentralBody/Earth J2000"

STK Programming Interface 11.0.1