Astrogator FAQs

Ansys Licensing Troubleshooting

• Oct 10, 2022
• FAQ

This article provides steps for troubleshooting when the Ansys STK application cannot find a license.

Maintain a Repeat-ground-track Orbit Using Atmospheric Drag

• Aug 14, 2025
• How To

You can maintain a repeat-ground-track orbit by setting up a target sequence to solve for the impulsive maneuver at the maximum ground track error...

EDU Installation and Licensing Procedures

• Jan 19, 2018
• FAQ

This is a quick guide to installing STK and retrieving educational licenses. Starting in the 2022-2023 school year, AGI’s Educational Alliance...

Astrogator Engine Plugin MATLAB Script

• Jun 8, 2016
• FAQ

This article describes how to use a MATLAB script to define a custom engine model in Astrogator.

What is the FLEXlm BORROW Feature, and How is it Used?

• Sep 24, 2015
• FAQ

License borrowing enables you to take a license for use outside of the company facility, such as an engineer would do to take a license home on a...

Ansys License Manager and Enterprise Licensing Package

• Nov 15, 2022
• FAQ

You can use these tools to serve Ansys Licenses.

Python Programming: comtypes versus win32com

• Jul 2, 2020
• FAQ

Modeling Uncertainty in STK

• Jun 2, 2016
• FAQ

This article describes how to account for uncertainty in systems within STK.

Satellite Constellation with Frequency Hopping Transmitters and Interference Impact

• Dec 10, 2019
• FAQ

This article shows the impact each set of radios has on the others' frequency transmissions.

License Service Starts Then Stops

• Dec 21, 2017
• FAQ

This is a fix for when you start STK License Server but it suddenly stops or you get a "WinSock: Connection refused" error. It applies to those...

Why Am I Getting a “NO LICENSE” Error When Building an STK Engine Application in Visual Studio?

• Sep 2, 2015
• FAQ

Integration of Custom Behavior Models in STK

• Jan 25, 2017
• FAQ

The techniques for integrating custom models with STK will vary quite a bit depending on a few factors, which are discussed in this article.

How to Sort Aviator Catalog Objects and Other Aviator Catalog Tricks

• Jan 24, 2020
• FAQ

Explanation of Body Mask Files (.bmsk)

• Aug 3, 2015
• FAQ

This is a detailed explanation of how a BMSK file is defined.

Where can I find additional Aviator Aircraft Performance Models?

• Apr 15, 2019
• FAQ

AGI maintains a collection of performance models that were created from Open Source information, which should be treated as notional. Below are the...

Using a 3D Grid Model to Estimate Distance in STK

• Nov 17, 2016
• FAQ

3D model of a 3 axis grid

How to make a metallic material on a model without using a texture map

• Jan 26, 2017
• FAQ

This article provides a working understanding of the FaceColor, specularity and shininess settings of the MDL format in the context of creating a...

What can happen if inappropriate element spacing is introduced in a phased array antenna?

• Feb 26, 2018
• FAQ

Scanning above the maximum scan/look angle will cause grating lobes.

How to set up the HLA configuration in STK DSim

• Dec 14, 2016
• FAQ

A step by step guide to set up an HLA Federation in STK DSim

Using ODTK for Emitter Geolocation Using Airborne Platforms

• May 10, 2023
• How To

This article shows you how to apply ODTK for geolocation of a ground-based emitter from two aircraft.