Description

SGP4 propagator interface.

Public Methods

Propagates the satellite's path using the specified time interval.

Public Properties

AutoUpdate	Allows configuring the auto-update parameters and settings.
AutoUpdateEnabled	Whether automatic update is enabled.
CommonTasks	Most commonly used tasks such as importing file data, etc.
EphemerisInterval	Get the propagator's ephemeris interval.
Segments	Get the element set list.
Settings	Propagator settings.
Step	Step size. Uses Time Dimension.

Interfaces

Implemented Interface
IAgVePropagator

CoClasses that Implement IAgVePropagatorSGP4

Name
AgVePropagatorSGP4

Example

Set the satellite to use the SGP4 propagator

[C#]

// Set propagator to SGP4
satellite.SetPropagatorType(AgEVePropagatorType.ePropagatorSGP4);

// Get the SGP4 propagator
IAgVePropagatorSGP4 propagator = satellite.Propagator as IAgVePropagatorSGP4;

Configure the SGP4 propagator with file source

[C#]

// Configure propagator's TLE file path
propagator.CommonTasks.AddSegsFromFile("2215", tleFilePath);

// Propagate
propagator.Propagate();

Configure the SGP4 propagator with online source

[C#]

// Configure time period
propagator.EphemerisInterval.SetExplicitInterval("1 Jan 2012 12:00:00.000", "2 Jan 2012 12:00:00.000");
propagator.Step = 60.0;

// Add segments
propagator.CommonTasks.AddSegsFromOnlineSource("25544");

// Propagate
propagator.Propagate();

Configure the SGP4 propagator with file source

[Visual Basic .NET]

' Configure propagator's TLE file path
propagator.CommonTasks.AddSegsFromFile("2215", tleFilePath)

' Propagate
propagator.Propagate()

Configure the SGP4 propagator with online source

[Visual Basic .NET]

' Configure time period
propagator.EphemerisInterval.SetExplicitInterval("1 Jan 2012 12:00:00.000", "2 Jan 2012 12:00:00.000")
propagator.[Step] = 60

' Add segments
propagator.CommonTasks.AddSegsFromOnlineSource("25544")

' Propagate
propagator.Propagate()

Set the satellite to use the SGP4 propagator

[Visual Basic .NET]

' Set propagator to SGP4
satellite.SetPropagatorType(AgEVePropagatorType.ePropagatorSGP4)

' Get the SGP4 propagator
Dim propagator As IAgVePropagatorSGP4 = TryCast(satellite.Propagator, IAgVePropagatorSGP4)

Set satellite propagator to SGP4 and propagate

[Python - STK API]

# IAgSatellite satellite: Satellite object
satellite.SetPropagatorType(AgEVePropagatorType.ePropagatorSGP4)
propagator = satellite.Propagator
propagator.EphemerisInterval.SetImplicitInterval(
    root.CurrentScenario.Vgt.EventIntervals.Item("AnalysisInterval"))  # Link to scenario period
propagator.CommonTasks.AddSegsFromOnlineSource('25544')  # International Space Station
propagator.AutoUpdateEnabled = True
propagator.Propagate()

Set satellite propagator to SGP4 and propagate

[MATLAB]

% IAgSatellite satellite: Satellite object
satellite.SetPropagatorType('ePropagatorSGP4');
propagator = satellite.Propagator;
propagator.EphemerisInterval.SetImplicitInterval( ...
    root.CurrentScenario.Vgt.EventIntervals.Item("AnalysisInterval")) % Link to scenario period
propagator.CommonTasks.AddSegsFromOnlineSource('25544'); % International Space Station
propagator.AutoUpdateEnabled = true;
propagator.Propagate();

STK Objects	Send comments on this topic.
IAgVePropagatorSGP4 Interface