Description

SGP4 propagator interface.

Object Model

Public Methods

Propagate

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 of TLEs, etc.
EphemerisInterval	The propagator's ephemeris interval.
Segments	Get the element set list.
Settings	Propagator settings.
StartTime	This property is deprecated. Use EphemerisInterval to configure the propagation interval. Start time. Uses DateFormat Dimension.
Step	Step size. Uses Time Dimension.
StopTime	This property is deprecated. Use EphemerisInterval to configure the propagation interval. Stop time. Uses DateFormat Dimension.
UseScenarioAnalysisTime	This property is deprecated. Use the new Timeline API components to configure the propagator's analysis time. Whether the scenario analysis start/stop times shall be used.

Interfaces

Implemented Interface
IAgVePropagator

Example

Set the satellite to use the SGP4 propagator

[C#] Copy Code

// 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#] Copy Code

// Configure propagator's TLE file path 

propagator.CommonTasks.AddSegsFromFile("2215", tleFilePath); 

 

// Propagate 

propagator.Propagate();

Configure the SGP4 propagator with online source

[C#] Copy Code

// 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] Copy Code

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

' Propagate
 propagator.Propagate()

Configure the SGP4 propagator with online source

[Visual Basic .NET] Copy Code

' 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] Copy Code

' 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

[MATLAB] Copy Code

% IAgSatellite satellite: Satellite object 
satellite.SetPropagatorType('ePropagatorSGP4'); 
propagator = satellite.Propagator; 
propagator.UseScenarioAnalysisTime; 
propagator.CommonTasks.AddSegsFromOnlineSource('25544'); % International Space Station 
propagator.AutoUpdateEnabled = true; 
propagator.Propagate;

Set satellite propagator to SGP4 and propagate

[Python] Copy Code

# IAgSatellite satellite: Satellite object 
satellite.SetPropagatorType(4) # ePropagatorSGP4 
propagator = satellite.Propagator 
propagator.UseScenarioAnalysisTime 
propagator.CommonTasks.AddSegsFromOnlineSource('25544') # International Space Station 
propagator.AutoUpdateEnabled = True 
propagator.Propagate()

CoClasses that Implement IAgVePropagatorSGP4

Name
AgVePropagatorSGP4

AGI STK Objects 11	Send comments on this topic.
IAgVePropagatorSGP4 Interface