Astrogator FAQs

How do I Model a Takeoff from an Aircraft Carrier?

• Jun 7, 2017
• FAQ

This article describes how, using Aviator, you can use the STK Vehicle Site and Launch procedure to model a takeoff from an aircraft carrier.

How do I Find the Descending Side of an Orbit?

• Jan 18, 2016
• FAQ

You can use Analysis Workbench in STK to find the descending side, which is especially important for remote sensing satellites.

How Do I Register a WSC-type Plugin with STK or ODTK?

• Jan 21, 2016
• FAQ

This article walks you through registering a WSC-type plugin with STK or ODTK.

How Do I Define/Configure a Phased Array Radar?

• May 21, 2015
• FAQ

This article provides two options to do this in STK.

Increasing the Thickness of the Line-of-sight Access Line

• Sep 15, 2015
• FAQ

How to use Launch Window tool (CAT) for Missiles?

• Sep 27, 2016
• FAQ

STK includes a powerful calculation for computing conjunctions with Space objects from known (or unknown) missile trajectories

Sun Vector Calculation

• Sep 14, 2020
• FAQ

Why can't STK client find a network license from the license server?

• May 27, 2015
• FAQ

Use this step by step trouble shooting guide to determine why you get the "no license found" message when using a network client license file with STK

Color value property from Matlab COM Interface

• Sep 30, 2015
• FAQ

This article explains what the value returned from a color property through the Matlab COM interface represents. Includes helper function to find...

Where can a custom Central Body file be saved?

• Nov 2, 2016
• FAQ

STK will look for a central body file in specific file locations and in a specific order.

Repeating Sun-Synchronous Orbit Stationkeeping with Astrogator Autosequences

• Nov 17, 2021
• How To

Why Do Area Target "Fill Graphics" Appear Outside of the AreaTarget Boundary?

• May 27, 2015
• FAQ

The automatically computed centroid is therefore outside of the Area Target boundary, so you must move it inside the boundary.

Accesses with Constellations and Chains

• Aug 14, 2025
• FAQ

This article describes the basics of setting up a constellation and chain to compute access from one object to a group of several other objects. It...

Getting Started with AGICSS

• Mar 19, 2026
• How To

A set of help documents for getting started with AGICSS as a customer.

How to Convert Cloud Maps from CSV to CLD Format for Visualization

• Oct 15, 2025
• How To

This article describes the procedure for converting cloud maps from CSV format, used by EOIR, to CLD format, used by Globe Manager and 3D Graphics...

Output NUE Coordinate Data in Reference to Aircraft Starting Point

• Oct 22, 2015
• FAQ

This article provides instructions on how to create a NUE (North-Up-East) coordinate frame attached to an aircraft body and output position,...

How to Fix STK 12.7 Hanging when Opening a File Selector in Windows 11

• Jul 26, 2023
• FAQ

This article addresses an issue identified with running STK 12.7 on Windows 11 machines.

Error "Component FM20.dll or one of its dependencies missing or invalid"

• Apr 12, 2016
• FAQ

This article explains what to do if you are getting the error "Component FM20.dll or one of its dependencies missing or invalid" when trying to run...

How to Add External Data to a 3D Graphics Window

• Feb 1, 2016
• FAQ

This article explains how to visualize time-ordered data from non-STK sources in the 3D Graphics window.

Why Do I Get an 'Error 1327' Message When Trying to Install STK?

• Dec 8, 2015
• FAQ

Here is a summary of steps to solve an error 1327 message when installing STK.