API Reference

AstroFrames

Coordinate systems and reference frames for astrodynamics applications.

Provides types for defining coordinate systems with customizable origins and axes orientations, supporting common reference frames like ICRF, J2000, and VNB for example .

AbstractAxes

Abstract type for coordinate system axes definitions.

Concrete types specify the orientation of coordinate axes. See also: ICRFAxes, VNB, Inertial.

AbstractCoordinateSystem

Abstract type for coordinate system implementations.

All coordinate systems must define an origin and axes orientation. See also: CoordinateSystem.

CoordinateSystem{O,A}(origin, axes)
CoordinateSystem(origin, axes)

Coordinate system defined by an origin point and axes orientation.

Arguments

• origin::AbstractPoint: Origin point of the coordinate system
• axes::AbstractAxes: Axes orientation specification

Examples

# Earth-centered inertial coordinate system
cs = CoordinateSystem(earth, ICRFAxes())

# Spacecraft-relative VNB frame  
cs_vnb = CoordinateSystem(spacecraft_position, VNB())

See also: AbstractAxes, ICRFAxes, VNB.

ICRFAxes

International Celestial Reference Frame axes.

Inertial

Inertial coordinate axes.

MJ2000Axes

Mean J2000.0 coordinate axes.

VNB

Velocity-Normal-Binormal coordinate axes.

Trajectory-relative coordinate system where V is along velocity vector, N is normal to the orbital plane, and B completes the right-handed frame.

function Base.show(io::IO, cs::CoordinateSystem)

Delegate generic show to text/plain

Base.show(io::IO, ::MIME"text/plain", cs::CoordinateSystem)

Display a CoordinateSystem showing origin name and axes type.