Astrogator FAQs

Creating a Simplified Earth in STK

• May 25, 2016
• FAQ

This article provides steps to create a spherical Earth and use a low-fidelity rotation model.

What is the Difference Between Scenario > Earth Temperature and Receiver/Radar > Earth Temperature?

• Apr 27, 2016
• FAQ

What are the Differences Among ODTK License Types?

• Jul 28, 2015
• FAQ

For ODTK 7.2 and older, there are three different ODTK license types. ODTK 7.3 and newer has two licenses types. This article explains the...

Can You Use TLEs for Decay / Reentry Estimation?

• Jul 2, 2020
• FAQ

You cannot use TLE and SGP4 propagators alone to predict deorbit times. You must also use additional support tools.

Why is the "Search by Address" Tool Not Finding Results?

• Aug 8, 2017
• FAQ

How Do I Create High-quality, Realistic STK Videos?

• Sep 9, 2015
• FAQ

STK has several features that enable users to create photo-realistic animations. This FAQ provides some resources for how to learn those techniques.

Does STK Support Streaming Terrain and Imagery with Local Data (Offline)?

• Mar 31, 2016
• FAQ

This FAQ discusses the options for streaming local terrain and imagery data.

STK Analyzer Macros

• Nov 19, 2015
• FAQ

This article describes the four basic things that you need to do to create macros for STK's Analyzer capability.

How Can I Specify the Number of Points That STK Uses When Generating a Sensor Pattern?

• May 27, 2015
• FAQ

Why am I Getting Access on the Far Side of the Moon?

• Dec 13, 2021
• FAQ

You should set the appropriate obstructing central bodies in the constraints section of your access objects.

How do you calculate the Ground Sample Distance for a sensor object in STK?

• Jun 8, 2016
• FAQ

Set up the Resolution properties for the sensor and use the ConstraintData Data Provider to calculate the Ground Sample Distance (GSD).

How to Improve ODTK Speed

• Oct 22, 2018
• FAQ

How to make ODTK run faster

When Can A Sensor See Land?

• Jun 14, 2018
• FAQ

What are the frequency bands of the environment models used in STK?

• Nov 3, 2015
• FAQ

Common Pitfalls Using Astrogator's Target Sequence

• Aug 15, 2017
• FAQ

There are several common cases where you may not get a successfully converged solution when using the differential corrector profile in a Target...

How to Set Up an Aviator Route to be Blown Off Course From Wind

• Feb 4, 2019
• How To

Tips and Tricks for the Sparse Nonlinear Optimizer (SNOPT) Profile in Astrogator

• Aug 7, 2018
• FAQ

This is a collection of guidelines that you should follow in order to efficiently optimize trajectories with SNOPT.

EOIR Cloud Modeling Demo

• Jul 7, 2021
• FAQ

Materials and workflow for EOIR Cloud Modeling Demo

How do I set up a model file that contains solar panel groups?

• May 29, 2015
• FAQ

You can use the geo_sat1.mdl file attached here as an example and follow the explanation below to help you set up your model file to contain solar...

How Do I Get a License to Prepare for and Take the Level 2 - STK Master Certification Test?

• Oct 10, 2017
• FAQ

This article tells you how to get a license to go through the Level 2 - Advanced preparation lessons and take the Level 2 - STK Master...