MultiBody components are a subset of Calculation Object components.
ComponentBrowser */ SetValue "Calculation Objects" {Component} {Attribute} <Value> [{Unit}]
ComponentBrowser */ Duplicate "Calculation Objects" {Component} <Duplicate Component Name>
The Multibody components include B-plane elements, delta declination and right ascension. The b-plane is a planar coordinate system that allows targeting during a gravity assist. It can be thought of as a target attached to the assisting body. Delta Declination and Right Ascension are described in the table below. For more information, refer to the help files for the Astrogator Graphical User Interface (GUI).
The MultiBody components are:
| Component | Description |
|---|---|
| BDotR | B-Plane B and R vector dot product |
| BDotT | B-Plane B and T vector dot product |
| BMagnitude | B-Plane B vector magnitude |
| BTheta | B-Plane theta angle |
| Delta Declination | Declination between s/c and central body wrt parent body. Delta Declination is the difference between the declination of the target body and that of the satellite with respect to the target body's parent body. |
| Delta Right Asc | Right Ascension between s/c and central body wrt parent body. Delta Right Ascension is the difference between the right ascension of the target body and that of the satellite. The right ascension is measured with respect to the target body's parent body, in the parent body's inertial coordinate system. |
The attributes for each component have the same names and value selections that appear in the Astrogator GUI.
ComponentBrowser */ Duplicate "Calculation Objects" BDotR "My BDotR"
ComponentBrowser */ SetValue "Calculation Objects" "My BMagnitude" TargetBody Pluto
STK Programming Interface 11.0.1